MarketUnited States Marine Corps Amphibious Reconnaissance Battalion
Company Profile

United States Marine Corps Amphibious Reconnaissance Battalion

The United States Marine Corps's Amphibious Reconnaissance Battalion, formerly Company, was a Marine Corps special operations capable forces of United States Marine and Hospital corpsman that performed clandestine operation preliminary pre–D-Day amphibious reconnaissance of planned beachheads and their littoral area within uncharted enemy territory for the joint-Navy/Marine force commanders of the Pacific Fleet during World War II. Often accompanied by Navy Underwater Demolition Teams and the early division recon companies, these amphibious recon platoons performed more reconnaissance missions than any other single recon unit during the Pacific War.

Early history
The United States' earliest doctrine in amphibious reconnaissance was introduced by naval intelligence officer Major Dion Williams, who divided preliminary reconnaissance between those concerned with the sea to the shoreline to be conducted by the naval beach demolition units, and those concerned with the beach and adjacent land, the recon Marines. Technical expertise was required in surveying, cartography, and recording observations, as well the ability to interpret various types of hydrographic and topological data from previous surveys. Dion Williams stated— :"In order to prepare intelligent plans for the attack or defense of a harbor or bay, it is necessary to have at hand a comprehensive description of the hydrographic features and accurate charts showing the depths of water at all points, the reefs, rocks, shoals, and peculiar currents which constitute dangers to navigation, and the tributary streams and channels which may form avenues of attack or furnish anchorages for a portion of the floating defenses or auxiliaries of the defenders." American naval doctrine of 1927 continued to emphasize reconnaissance for planning as well as reconnaissance to verify the soundness of formulated plans and reconnaissance during the last phases. This three-stage concept of intelligence gathering remained in effect throughout World War II when the V Amphibious Corps directive listed the following phases of reconnaissance: Early reconnaissance activities were generally confined to surveys of various ports, uncharted islands and contiguous waters performed by officers qualified in survey technique. Some nautical charts to this date of infrequently encountered areas and islands still bear annotations indicating they were compiled by officers of various American ships. The duty of an intelligence officer aboard American ships was usually filled by the senior Marine Corps officer aboard. As each year, the FLEX has made improvements and modifications, the Fleet Marine Force Headquarters were moved to San Diego, California, in 1936. By 1938, submarines from Submarine Squadron 11 were used for practice in covertly disembarking small, recon landing teams of Marines onto the beaches, providing intelligence of their opposing team during the exercises. The Navy converted 'four-stacker' destroyer ships by removing two of the stacks and its boilers to provide spacious room for the Marines and their equipment. These modified ships were vintage old destroyers from the early 1920s, reclassified as high speed destroyer-transports, or APDs. By early World War II, the newer, faster and more modern class of destroyer escorts were substituted as an updated version class of APDs, which were later used extensively by the recon Marines and the Underwater Demolition Teams. ==Organization==
Organization
Amphibious Corps, Pacific Fleet In December 1941, a joint-Army/Marine unit, the Observer Group, was formed as a specialized small-scale amphibious raiding party to conduct reconnaissance of the beachheads of Europe and North Africa, with Captain James Logan Jones as the commanding officer of the Observer Group. Jones's Group (Observer Group) was the first unit to be specifically trained as an amphibious reconnaissance asset in the United States military. By January 7, 1943, the Commanding General of Amphibious Corps, Major General Holland M. Smith disbanded the Observer Group and activated the Amphibious Reconnaissance Company, Expeditionary (Corps) Troops, Amphibious Corps, Pacific Fleet (ACPF), at Camp Elliott in California. The new structure, however, still remained small as a company-size element as it consisted of a headquarters and service platoon and four reconnaissance platoons. Each of the recon platoons were commanded by a lieutenant and consisted of two six-man squads. These platoons were tailored with appropriate military attire and equipment for the amphibious patrol, which included light-weight armament, tennis shoes or other noiseless shoes, and no insignia worn on clothing. Other mission-essential equipment were knives, rope, and adhesive tape. The Table of Equipment (T/E) was only that which was essential and can be easily disposed. The total Company consisted of six officers and 92 enlisted Marines. One of the training areas used by the Company included the northernmost section of Camp Pendleton, Tent Camp 3, an area which not only provided excellent terrain for training, but a messing facility as well. This illegally constructed mess hall had been erected by the previous ACPF's XO, Jimmy Roosevelt (the son of the late president Franklin D. Roosevelt). When discovered by the higher echelon later, it almost cost James Jones a court-martial until it was disclosed that Jimmy Roosevelt had built it and the charges were dropped. Fleet Marine Force, Pacific Departing the Mariana Islands after the Battle of Tinian on August 9, 1944, VAC Amphib Recon Battalion returned to Hawaii on August 20 and was redesignated as FMFPAC Amphib Recon Battalion, the Fifth Amphibious Corps (VAC) shifted its parent command under Fleet Marine Force, Pacific (FMFPac). The Amphibious Reconnaissance Battalion made its title change into the "Amphibious Reconnaissance Battalion, VAC, FMFPac" on August 26, 1944. Company to battalion After the events of the operation in the Gilberts and Marshall Islands, the VAC Amphibious Reconnaissance Company was infused with new replacements and took advantage of lessons learned in recent combat. On January 3, 1944, the Company reported their actual on-board personnel organization a strength of seven officers, 101 enlisted Marines, and two Navy Corpsmen; slightly over the intended strength due to the attached mortar section of 2nd Lt. Boyce L. Lassiter, and twenty-two of his enlisted mortarmen. While Jones's Amphib Recon Company was the sole company involved in recon missions at the 'Amphibious Corps-level [force-level], the staff of the V Amphibious Corps was aware of their limited availability due to their size of personnel, organization and equipment. Lt. General Holland Smith recommended to Marine Commandant A. A. Vandegrift that he expand the recon company to a battalion; thus allowing additional flexibility and continuity for assignment of missions. Less than a week after the return from the Marshalls, the Amphibious Reconnaissance Company, Amphibious Corp, Pacific Fleet (ACPF), was expanded and reorganized into VAC Amphibious Reconnaissance Battalion, ACPF, being activated in Hawaii April 14, 1944. The two recon-company battalion Table of Organization (T/O) was approved and authorized on April 28, 1944, recommending the Battalion be commanded by a major, which promoted commanding officer James L. Jones Sr. from captain to the rank of major. In general, the battalion consisted of two companies, Company A (ALPHA) and B (BRAVO). The two companies comprised a weapons platoon made up a mix of twenty mortarmen and machine-gunners, and a headquarters company of six officers, forty-two EMs and thirteen Navy corpmen; making 303 men in all. Lieutenant Merwyn Silverthorn remained as the company XO shortly until being replaced by a more senior Capt. Earl Marquardt. Silverthorn then assumed command of Alpha Company; 1st Lt. Russell Corey took command of Bravo Company. 1st Lt. Leo B. Shinn moved into the battalion's small headquarters. In June 1944, two staff non-commissioned officers were recommended for field promotion to second lieutenant and were acting as platoon leaders in lieu of the two officers' vacancy billets. Additional communicators and radios increased the communications sections, plus additional mission-essential gear were scrutinized to obviate the prior necessity of "scrounging for gear" to get ready for their next operation. By June 30, the battalion was fully trained, equipped and in the field. The battalion headquarters detachment had a projected operational date of 15 July 1944. Captain Jones was temporarily assigned duty in May 1944, with 1st Battalion 2nd Marines, 2nd Marine Division, aboard en route to Saipan where he participated in the action against the enemy 16–19 May 1944. After a brief return to Pearl Harbor, he returned to Saipan 16–30 June 1944. ==World War II-era==
World War II-era
Three days after the attack of Pearl Harbor on December 7, 1941, the Japanese occupied the Gilbert Islands, and built a seaplane base on Makin that provided a token defense of Tarawa. They left a small number of Japanese Coastwatchers on Apamama, along with a few other atolls, to observe Allied forces in the South Pacific. Aerial photography, submarine periscope photography and hydrographic reconnaissance by recon Marines and Navy UDT teams became part of the array of intelligence assets that were worked into the operation plan for the invasion. At the time, periscope photography was still new. Only a few ship captains had made single shots of sinkings, but Admiral Turner and General Smith were in need of more detailed and definitively located photographs of the beaches arranged in precise panoramic sequence. These would show enemy machine-gun and anti-boat gun emplacements as well as the locations of topographic features. Aerial photographs would be used in conjunction to provide a detailed photo interpretation. Undoubtedly the most significant employment of reconnaissance in World War II occurred at Tinian. Far more important than the reputations which hung in the balance among the very top planners, were the thousands of lives undoubtedly saved as a direct result of reconnaissance efforts. Pre-D-Day reconnaissance was limited because of Vice Admiral Turner. He was cautious about acknowledging Saipan as the main initial target. Also, he had also declined all pre-D-Day amphibious reconnaissance at Tarawa, which in hindsight, led to the controversial topic of whether his lack of prepared pre-D-day amphibious reconnaissance contributed to the high casualty rate of Marines. The seizure of the Ogasawara archipelago and the Volcano Islands were outlined in the OCTAGON Conference in September 1944 between U.S. President Franklin D. Roosevelt, British Prime Minister Winston Churchill and the Combined Joint Chiefs of Staff. Due to General Douglas MacArthur's landing on Leyte, it made modifications to the Combined JCS initial directive for General MacArthur to further seize Luzon on the targeted date of December 1944 and Admiral Chester Nimitz to provide cover and naval support by seizing the Bonin Islands, or the lesser Volcano Islands, on or about January 20, 1945 and Okinawa in the Ryukyu Islands on or about March 1, 1945. Admiral Nimitz chose Iwo Jima instead of ChiChi Jima for seizure, the largest islet in the Volcano Islands. He acknowledged that it would provide airfields for the P-51 Mustangs, to escort the B-29 Bombers for bombing Tokyo on mainland Japan, traveling north from the newly acquired airbases on the islands of Saipan and Tinian. The operation of Iwo Jima, codenamed DETACHMENT, was given to Admiral Spruance and RAdm Hill by Admiral Nimitz. Iwo Jima was going to be the only major battle for 5th Marine Division, Task Force 56 (Expeditionary Troops) as a division-in-whole during World War II; however, half of the new 5th Division was formed by the enlisted Marines from prior engagements from other units. Iwo Jima was the most heavily fortified island in the Japanese defenses, making it the bloodiest and costliest campaign in Marine Corps history. With news that the United States was delayed in the Iwo Jima operation, due to the support of Luzon and the campaigns in the Marianas, the Japanese took advantage of the opportunity in reinforcing their strength by attaching the 109th Infantry Division and adding heavier beach-defense weapons, artillery and tanks. Emperor Hirohito himself selected Lieutenant General Tadamichi Kuribayashi, a brilliant battle-hardened cavalry officer, as its commander. The US Navy lost on average of one-and-a-half ships daily, also making it the costliest naval involvement in the history of sea warfare. Night offensive action by the amphib recon Marines, not the normal practice during the earlier actions of World War II, was emphasized during the Okinawan campaign as the Marines conducted 21 night patrols and attacks, 13 of which were by the Amphibious Reconnaissance Battalion. The Gilbert Islands On September 13, 1943, when Jones arrived to VAC in Hawaii, he was handed further orders stamped CONFIDENTIAL to report to the large, mine-laying submarine for temporary duty on September 15, 1943: :"Pursuant to authority which may not be quoted herein, you will stand detached from Marine Barracks, Camp Elliott... on September 10, 1943... reporting upon arrival to the Commanding General, Fifth Amphibious Corps, Pacific Fleet, for permanent duty beyond the seas."' —Orders from Rear Echelon to James L. Jones Jones and Army Captain D. L. Newman reported to the commanding officer of the submarine , Commander William D. Irwin, on September 16, 1943, at the submarine base in Pearl Harbor during their Sixth War Patrol—Charles Momsen, letter to Chief of Naval Personnel On October 16, 1943, USS Nautilus returned to Pearl Harbor after eighteen days of periscope photography and briefings were begun to prepare the company for their first mission in the Apamama Atoll (codename BOXCLOTH), General Holland M. Smith conceived the concept of operations, reasoning that it would be best to land scouts on the main island of the Apamama Atoll by submarine to reconnoiter enemy positions before committing any sizable force. According to the Marines on board the submarine, they clarified that it was a six-inch shell after examining it while they were back at Pearl Harbor. Thus it had to be from the main battery of the Santa Fe. Nonetheless, water deluged down into the conning tower hatch, the gyroscope ceased to function, the main induction was flooded, and only immediate application of efficient damage control averted serious trouble. The submarine dove to 300 feet to make necessary repairs, although there was no place itself to hide from the averted dangers from the two ships' friendly fire. It didn't severely hinder the submarine; Nautilus continued southbound through the night en route to Apamama, the company's first combat reconnaissance mission. Apamama became perhaps the only atoll in history to be captured from a submarine. Codenames were given by the planners for the seizure of Apamama, each a word for the six islets. STEVE for main Apamama Island, forming the northern and most northeastern part of the atoll, and going clockwise; OSCAR, OTTO, ORSON, JOHN, and lastly JOE, which was adjacent to the mouth of the lagoon where Entrance Island is located. Their orders were to scout out the islands by using the cover of darkness; to determine the strength of the defending Japanese forces and select potential beaches for a planned landing for an occupying American force which was following in a few days. Each man was handed three K-rations, one D-ration, and two fragmentation grenades. There were 45 rounds for each M1 carbine, 48 rounds for each M1 Garand rifle, 260 rounds for the M1918 Browning Automatic Rifle (or BAR), and 2000 rounds for each M1919 Browning machine gun as well as eight 511 SCR radio sets, two TBX-8 radio sets (that were similarly used by the Navajo Code Talkers), two blinder guns, six sets of semaphore flags and four 14" x 26" panels. Only able to start four outboard motors out of the six, they cruised towards JOHN. About halfway, two more outboard motors had quit and the Marines ended up towing and paddling the others to shore. Running into squalls and fierce currents, two boats of Marines disappeared into the darkness while Marines on the others frantically paddled to avoid the razor sharp coral reef. The wind subsided about an hour later and the two missing boats joined the column as they rendezvoused 400 yards off the reef. At 0330 they landed; by then the men were already exhausted and torn up by the coral. While the beachhead was being secured and coded panels emplaced to communicate to the submarine, Captain Jones immediately sent three platoons out at 0530 as a reconnaissance-in-force around the west end of JOE Island. Lieutenant Corey went north to the lagoon shore with his 4th Platoon. Lt. Minnear took his 2nd Platoon west towards the western end of the small island. The two natives informed Hand that the Japanese were entrenched in force around a radio station on OTTO, one islet away. They described the Japanese defenses as being reinforced positions using coconut logs and reported that their weapons included two light machine guns, one heavy machine gun, rifles, bayonets, pistols and hand grenades. Also, there were twenty-five Japanese Marines, fewer than the number of the United States Marines, but were well dug in and "had plenty of ammunition". Also, they also informed Lt. Hand that the Japanese knew they [Americans] were on the island and were in preparation. They remained in the vicinity of the boat to keep it under surveillance; the patrol divided, the second and third platoons moving south along the reef passage to the southeast tip of JOE Island. Shinn returned to the CP and reported his findings. Jones dispatched 1st Lt. Russell Corey's 3rd Platoon at noon to put the Japanese barge out of commission without permanently disabling it by removing the spark plugs from the engine and made accelerator adjustments. The barge was the only means for the Japanese to escape to the north. The Marines moved out along the road to the boat in a staggered squad column with point and flankers. About two hundred yards away, a Japanese patrol of three men were encountered who were already at the barge. Under fire, Corey's BAR man, Pvt Homer J. Powers, killed one with an offhand shot while the other two escaped into a nearby grove. Back at the command post (CP), a new word came in from the natives that the Japanese had gathered all their weapons and were moving rapidly to the barge site. At 1300, Captain Jones with all available Marines, First and Second Platoons, moved out to join Lt. Corey and the light machine gun section (who had just put the boat out of commission) at the road junction just west of Kabangak Village, to interdict the Japanese at the barge. Corey's 3rd Platoon joined Jones with the 1st and 2nd Platoons at 1400. The Japanese obviously passed through Kabangak village on JOHN, learned of Jones's presence, turned around and returned to OTTO to reoccupy their prepared defensive positions. Captain Jones began a reconnaissance-in-force, moving across ORSON, the island just south of OTTO, occupied by the Japanese. While en route contact was made with large numbers of natives leaving their villages for the groves. A Catholic Mission was reached by 1550 and the five white missionaries, three French Roman Catholic priests and two Australian nuns, verified the natives' information concerning the Japanese positions and strength. The Apamama natives informed Jones of a sandspit at the tip of OTTO opposite the mission, running northwest from ORSON, from which the Marines would be able to observe the lagoon (western) flank of the Japanese defenders, and to avoid crossing the bridge that connected the two islands, OTTO and ORSON. As Jones moved his entire company of Marines across the reef to the tip of the sandspit on ORSON, Japanese rose from higher terrain to the north of the advancing Marines and opened fire with light machine guns. One Marine killed one of the defenders at one hundred yards. When the lead elements of the company had advanced 250 yards up the sandspit, the company came under a barrage of fire from a nest of light machine guns emplaced from their eastern (right) flank, the coconut log positions on the south end of OTTO. The Marines found themselves in an unfavorable position for an attack and could not locate the position of the machine gun, while under fire with only one hour of daylight left and facing a rising tide, which was due to come in another hour. It would force the Marines to remain on the sand spit all night from where it would have been impossible to contact the submarine. Jones broke off contact and withdrew his company to the northern beach of ORSON. Also in the excitement, Lieutenants Corey and Shinn marched to the lagoon and surveyed the horizon with binoculars and spotted several objects which appeared and resembled ships. Due to the changing conditions of the visibility of atmospheric changes, they seemed to disappear and reappear. Corey and Shinn radioed the information to Captain Jones. Jones and his Marines standing by were convinced; after careful and lengthy observance, a native was called over and interrogated and it was learned that the objects were a beacon and several lone palm trees on the islets on the opposite side of the lagoon. These rounds would burst from the air as they would hit the palm fronds at the top of the coconut palms. This proved effective for the Japanese that were in the open but not for any Japanese seeking shelter in their coconut log bunkers. The Marshall Islands Planning in the Gilbert Islands was successful but highly costly during Operation GALVANIC. In December 1943, a modified plan was made to neutralize the inessential islands in the Marshall Islands, the atolls of Jaluit, Wotje, Maloelap, and Mili. There was also the need to seize Kwajalein, the main Japanese naval base in the Marshalls. This honor, however, was given in error to the Army Scouts of the 7th Infantry Division for their landing on Kwajalein five hours later. Since the Army Scouts were trained by the VAC Amphibious Reconnaissance personnel, it didn't tarnish any mixed feelings, and they shared their honor. The 7th Scouts were subsequently commended the Presidential Unit Citation. The Majuro Atoll consists of fifty-six islets along a lagoon that is long and up to wide ringed by a reef on the seaward side of the islands. The main island of Majuro was long, thin and enclosed on the southern side of the lagoon. Over fifty-six codenames were used on the islands that made up the Majuro Atoll, or codename SUNDANCE. Captain Jones's company was involved in the pre-planned reconnaissance. They landed only on the northern islets of Calalin (LUELLA) and Eroj (LUCILLE), considered entrance islands to the lagoon; Uliga (ROSALIE) and Delap (SALOME), the western portions of the atoll; the main island of Majuro (LAURA), running 10 miles (16 km) west-to-east along the southern end of the atoll; and Djarrit (RITA). On January 21, 1944, VAC Amphibious Reconnaissance Company, with the addition of 1st Lt. Harvey C. Weeks's 4th Platoon (which returned from a mission in the Makin Atoll), embarked on at the destroyer escort docks in Pearl Harbor for amphibious reconnoitering of the Majuro Atoll. Attached to the company was Lt. George Hard, Ocean Island Defense Force, as guide and interpreter (who was present during the Apamama operation previously); Mr. William Mueller of the Gilbert Islands, also as interpreter; and Staff Sergeant Schlosenberg and Technical Sergeant Szarka from Corps Public Relations. arriving on January 30, 1944. Kane harbored at a point thought to be 5000 yards seaward from LUELLA Passage, at 2030, nine hours prior to the main attack force. Before an advanced landing party was about to set off to shore, they discovered that an error had occurred in navigation, due to misinterpretation of the island profile. The group reembarked Kane and proceeded northward approximately 12,000 yards to their corrected position toward LUELLA. No Marines nor natives, nor especially the major Japanese buildings were hit. Most of the projectiles hit the coconut trees and were air bursts. Jones concluded that there were no Japanese other than the four patrols of recon Marines already on the ground. Fifteen minutes later, Jones received word that the gunfire would cease and to move the patrols out of the area immediately. Captain Jones meanwhile had been ordered to rendezvous with the CO of BLT 2/106 on board to discuss further amphibious reconnaissance on RITA and LAURA. Reembarking USS Kane, Capt. Jones dispatched Shinn's Platoon and Minnear's platoon. When the 1st Platoon and 2nd Platoon were proceeding across the reef passage to RITA, the 2nd Platoon was spotted by an observation plane from the USS Portland. Assuming that the Marines were enemy Japanese troops, the pilot proceeded to strafe the platoon. Despite the signals from the Marines, the pilot maintained strafing maneuvers; no one was injured and the men sustained minor injuries from the obstacles of the coral reefs. Shinn's platoon located a village on RITA and reported no enemy with no natives present; twenty or more excellent temporary frame buildings in good condition, none of which had been damaged by the "friendly" naval gunfire. Laid scattered in the area were numerous items, such as hand carts, steel rails, lumber, window frames, empty oil drums, a small steam locomotive and a narrow gauge railway line, a heavy steam roller, explosive materials, insulated electrical wire, and abundance of coconuts and papaya. On February 1, 1944, Capt. James Jones had received orders to assemble his company on Kane by 1700 to prepare for a reconnaissance of LAURA, disembarking by 2100, January 31 and Arno Atoll later that night. He secretly emplaced three patrols about the headquarters and a fourth patrol set to watch the two other Japanese houses. Harbored 4000 yards off the eastern point of LAURA Island, Weeks and his 4th Platoon, reinforced with twenty Marines from Lassiter's mortar platoon, landed on LAURA at 0030 using two Higgins boats. Eliu, the interpreter accompanying Weeks, began questioning the local natives. By 2300, Eliu encountered two of her native acquaintances and had agreed to lead their patrol to three houses occupied by the Japanese in a nearby settlement. Reaching the main native settlement at 0100, they Upon receiving orders that H-Hour would be scheduled at 1230, Capt. Jones transferred VAC Amphib Recon Company from USS Kane to their landing ship as instructed, then loaded onto the amphibious tractor, for the prepared landings on CANNA and CAMELLIA. They were supported by gun power from two nearby infantry landing crafts. Splitting the recon company in half, Capt. Jones, two of his officers, and fifty-seven recon Marines boarded three LVTs and landed on CAMELLIA Island at 1320, February 17, 1944. Some difficulty was encountered when two of the LVTs were stuck in the impermeable sand along the beachhead, barely able to maneuver them to a more solid sand bank. But by 1355, quickly finding that it was unoccupied, CAMELLIA was secure with no Japanese forces nor natives on the island. Meanwhile, Executive Officer 1st Lieutenant Merwyn Silverthorn also using three LVTs with four officers and fifty-seven men, landed ten minutes later at 1330 with the other half of the recon company on CANNA Island. While the recon Marines from VAC Amphib Recon Company were seizing the "artillery islands", the United States Navy Underwater Demolition Teams, also using amphibious tractors, or amtracs, were conducting underwater reconnaissance. The UDT swimmers would reconnoiter fifty feet from the shore of FRAGILE, casting from LVTs. Their main focus was to locate submerged obstacles that could dismay a landing force and naval mines. The joint-Marine and Army artillery battery began their emplacement on both CAMELLIA and CANNA, landing at around 1500. As soon as they were ashore, the recon Marines reembarked, leaving behind Lt. Shinn's 1st Platoon across the inter-islet channel of COLUMBINE to provide security for the Marine's 2nd Separate Pack-Howitzer Battalion. However, 104th's Field Artillery Battalion on CAMELLIA already had a sufficient number of soldiers providing their own security. At 1600 on D-Day (D-0), using their rubber boats, Minnear's 2nd Platoon and Weeks's 4th Platoon patrolled the island of BUTTERCUP that lay immediately northwest and adjacent from CANNA and CAMELLIA. After finding it unoccupied, they proceeded to reconnoiter CARNATION and COLUMBINE, reaching it by 1700. They found these two islands also unoccupied. Meantime, Lt. Silverthorn and his fifty-seven recon Marines returned to Jones and the remaining company. With VAC Amphib Recon Company rejoined, they dug in and spent the night on a nearby, unoccupied island of BITTERROOT. Crossing the channel through the heavy surf toward a small islet west of FRAGILE, Capt. Katzenbach's Scout Company, the 4th Marine Division landed on Bogen (ZINNIA) on the morning of February 18, (D+1). After scouting and reconnoitering, by 0327 it was declared unoccupied and secured, becoming the last amphibious reconnaissance mission before the main landing assault on FRAGILE. The captured islets of CAMELLIA, CANNA and ZINNIA prevented the enemy from fleeing and "island-hopping" to a nearby island, potentially to regroup with reinforcements or settle into defensive fortifications, awaiting the American Marine/Navy Fleet. Preceded by extensive naval gunfire and aerial bombardments, the 22nd Marines landed an assault on FRAGILE against the defended Japanese. One Marine was killed and two wounded from fire coming from the fierce firefight on FRAGILE. As an indication of how low the fire was, all of these Marines were lying flat on the ground when hit. Also, enemy coconut log bunkers were centralized and interconnected with complex trenches dug and constructed in a manner of radiating from its hub, covered with hidden spider holes. The Marines quickly resolved the issue by dropping incendiary or smoke grenades; the smoke would eventually convey through the covered trenches exposing all the hidden, unpredictable trap doors. While the 22nd Marines and 106th Infantry were in the process of capturing Engebi Island (FRAGILE), both Jones's and Katzenbach's recon and scouts captured a Japanese soldier while reconnoitering the eight other 'unoccupied' islands in the area. At 0900 on February 18, on D+1 just southeast of FRAGILE, landing on Muzingbaarkikku (ARBUTUS) "friendly-fire" hit three recon Marines, injuring two and later killing one while being evacuated to the ship. Apparently the rounds were dispersed from Marines on Engebi, firing machine guns onto a Japanese-held defense on Skunk Point. Using 60-mm mortars, the recon team was able to gain the western edge of ARBUTUS on the reef passage facing Engebi, and was ordered to secure it overnight to D+2 to flank any fleeing Japanese troops from FRAGILE. Around the afternoon of D+1, sometime around 1640, the two joint-Marine/Army infantry regiments officially secured FRAGILE. The 22nd Marines and the Army's 106th Infantry along with the 104th Artillery reembarked the USS Kane for an upcoming assault on Parry Island (HEARTSTRINGS). This made the 2nd Marine Artillery available to pack up and reinforce Jones if necessary. Marine General Thomas Watson carefully observed the continuous hard assault and casualties on Engebi, or FRAGILE, and decided to wait for the seizure of the main Japanese bastion on HEARTSTRINGS. Captured documents taken on FRAGILE confirmed that HEARTSTRINGS was strongly held and contained an artillery element. On D+2, General Watson ordered both the recon and scout Marine companies, to continue reconnoitering the string of islets to the west and the eastern islets of DOWNSIDE. The Marine Scouts headed for the eastern islets heading south and found Elugelab (SAGEBRUSH) unoccupied, but at Rigili (POSY) they killed nine Japanese soldiers. Fleet Admiral Chester W. Nimitz presented Capt. James Jones his second Legion of Merit, signed by United States Secretary of the Navy James Forrestal. In the center of the Marianas, or FORAGER lies Saipan, only from Tokyo, Japan. It was known at that time, the "Pearl Harbor of Japan", being the main administrative headquarters for all of the Japanese forces in the western Pacific. All the supplies and troops were funneled through Saipan that made up the whole of Japan's defense forces, their inner defense line. The island of Tinian lies south across the channel from Saipan. It was considered to contain the best airfields in the Marianas that catered to the Pacific campaign. One of the airfields was the launch site for the B-29 Bomber Enola Gay, which dropped the atom bomb on Hiroshima. They only major town at that time was Tinian Town, which centered at its mass, a 9,000-man Japanese defense force led by Japanese Colonel Keishi Ogata. All the Marine assault commanders confirmed by aerial photography and reconnaissance flown from nearby Saipan that the 2,000-yard wide sandy beach along Sunharon Bay, on the southwest side of Tinian, was the most heavily defended of all possible usable beaches. On the eastern side of Tinian at Asuga Bay, were more beaches chosen for contingency beach landings, which would encompass around the 25-foot cliffs for beach exits. These two beaches at Asuga Bay were designated as YELLOW #1 and #2, which also contained formidable Japanese defenses. Major Jones with Capt. Silverthorn's Company A accompanied by UDT Team 7 under Navy Lieutenant Richard F. Burke embarked onto , while Shinn's Company B embarked on the with UDT Team 5 under Lt. Commander Draper L. Kauffman. The APDs carried the joint-reconnaissance force to a point just offshore of Tinian. Faces colored with black and silver nonreflective face paint, they donned cammies or cut-off shorts made from utility trousers with soft covers as headgear. To avoid their feet being cut and torn by the coral, they either wore coral or tennis shoes, or an occasional pair of boondockers. Also, every sailor and Marine had a small inflation bladder (usually not inflated), providing positive buoyancy when required. Armed with only Ka-Bar or Fairbairn-Sykes combat knives, the recon Marines and the UDT Teams disembarked from their APDs. The recon Marines used eight rubber boats for each beach while the UDT teams were in two rubber boats for each beach, and were towed by Higgins boats to within 400 to 500 yards offshore from the beach. Two Marines were left in each boat to paddle them to keep them stationary off from the beaches while the swimmers went to their objectives, YELLOW Beach off Tinian Town, and WHITE #1 and #2 in the northwestern portion of the island. The Navy UDT and the recon Marines were accustomed to different reconnoitering methods, the Marines, reconnoitering the beach and the land inward, scouted the size and location of exits inland through the hills and dunes, the UDT, conducting underwater reconnaissance found that the shelving reef had only a few ragged breaks in its sea edge for the amphibian tractors to avoid. Silverthorn's Alpha Company and Burke's UDT 7 disembarked from the USS Stringham at 2100 and were towed to their position off YELLOW #1 (Asuga) Beach. The UDT found anchored mines, numerous potholes and coral heads. The hydrography of YELLOW #1 made it negatively inconclusive to land a beach assault. At 2232, the moonlight conveyed through the recently heavy clouds and revealed double-apron barbed wire along the beaches. 2nd Lieutenant Donald Neff of Alpha Company worked his way inland about 30 yards, silently evading a Japanese sentry that was having a cigarette. As he was looking for beach exits for tracked and wheeled vehicles, sounds of explosives were heard from a nearby beach. The UDT interpreted the explosion that had been spotted and departed the area since the security orders were to avoid disclosure of any landing intentions. Also, if any mines or obstacles were encountered, they were not to be disturbed. On the other hand, the Marines that were closer to the beach later surmised that the Japanese were working on their beach fortifications in hasty construction of trenches and blockhouses, and proceeded with their reconnaissance. Occasionally, Japanese sentries patrolling atop the twenty-five-foot escarpments flanking YELLOW #1 would shine flashlights onto the beach below but Silverthorn's Marines were never detected. Although one enemy patrol walked within a few yards of the Marines, they failed to spot them. They returned to the Stringham at 0200 with "negative" collective information in consideration of using YELLOW #1 for beach landings. As Silverthorn briefed Admiral Hill, Hill kept pressuring for Silverthorn's opinion on the WHITE beaches. To convince Admiral Hill, Silverthorn emphatically said... :"Admiral, the beaches are narrow... [but] there are no mines, no coral heads, no boulders, no wire, no boat obstacles and no offshore reefs. The beaches are as flat as a billiard table!" Heavy batteries would repeatedly lay suppressive fire by using light mortars, machine guns, rifle fire, and occasionally antiboat guns. The eastern beaches were photographically reconnoitered left-to-right by Sergeant Jim Burns and Captain Reynolds on GREEN Beach under the southeastern corner of Suribachi. Sgt. Clete Peacock covered RED Beach #1 in the center and Sgt. Robert Cole covered RED Beach #2 on the right, where Futatsu Rock separated RED #1 from RED #2. Both Burns and Peacock used a Contax 35 mm camera, and Cole used a Leica camera. Once they completed their objectives, they planned to extract from the sea by rubber boats towed from the Higgins LCIs and quickly headed to the gunboats. Meantime, fighter planes came in laying smoke while the destroyers were firing white phosphorus shells to cover their withdrawal. They speculated that some Japanese coast-watchers were in the vicinity helping adjust their fire upon the American ships during three weeks ago in the beginning phases of the battle. After finding no evidence, except a stone emplacement and some caves recently vacated from Japanese presence, Lt. Corey and B Company reboarded the LVTs and returned the VAC Corps headquarters on Iwo Jima. Their objectives were to seize offshore enemy artillery bases from which the mixed, "sea-based" Army/Marine 'provisional' field artillery battery could fire their 155-mm "Long Toms" and other artillery at hand for support for the upcoming main landing on Okinawa. Beginning on the nights of 25 – March 26, 1945, L-Day minus 7–6 days, Jones's ABLE Company of FMFPAC Amphib Recon Battalion, led by company commander Capt. Merwyn Silverthorn, disembarked the USS Scribner and Kinzer and landed in the Keise Shima islets of Kuefo Shima, Naganna Shima and Kamiyama Shima. Finding the islands unoccupied of enemy Japanese defenders or coastwatchers, the Navy UDT teams came offshore and blew up coral with explosive charges for clearing a passage for the upcoming joint-provisional artillery elements. Meanwhile, Major Jones, the commanding officer of FMFPAC Amphib Recon Battalion ordered Lt. Corey and BRAVO Company to board on to the next available APD-54 at Saipan and arrive to the Okinawa Islands to reinforce Jones and the rest of FMF Amphib Recon Battalion (particularly Major Jones and ABLE Company) by April 1. Later that day, the 77th Scouts landed in the Kerama Retto Islands and Silverthorn's ALPHA Company continued their mission reconnoitering the islands throughout Keise Shima. ALPHA Company landed ashore the southern tip of Awara Saki on Tokashiki at L-5, one of the larger islands that rests in the islands of Kerama Rhetto. It too was found unoccupied. Simultaneously, Major Tony Walker's 6th Marine Division Recon Company seized the eastern islands in the vicinity offshore from Okinawa. The recon Marines of the Amphibious Reconnaissance Battalion were awarded for their accomplishments, however the recon Marines were always inadequately commended due to public recognition. Rubber-stamped in very large letters on both top and bottom of the page clearly stated, 'TOP SECRET'. The Amphibious Reconnaissance Battalion received a commendation from Major General A. D. Bruce of the 77th Infantry Division. The commendation notes that the battalion joined the Division at Leyte prior to departure for Okinawa Gunto, and Major Jones and his staff participated in the final planning phase for the operation, and that the information obtained during the patrols played a crucial part in the successful operations against Kerama Retto, Keise Shima, and Minna Shima, as well as valuable assistance during the Kerama Retto and Ie Shima operations. An endorsement personally signed by Lt General Simon Buckner also classified TOP SECRET, noted: :"... I personally followed the excellent performance of the Battalion with much interest and would add that the part played by this splendid organization materially assisted in the success of our present campaign. The close cooperation of the services, Marine and Army, was here exemplified to the highest degree." In addition, the battalion also received an unclassified commendation signed personally by General Joseph Stilwell, commanding Tenth Army: :"... for your superior performance under the capable leadership of Major James Jones in carrying out your assigned missions in the Ryukyus Campaign. The Fleet Marine Force may well be proud of the development of amphibious reconnaissance as exemplified by your activities. Use of your battalion as the 'only-ground reconnaissance' agency held under Tenth Army Headquarters expedited the accomplishment of all phases of the recent campaign. Your aggressive action made unnecessary the use of large forces in the seizure of the eastern islands of Okinawa, the islands off Motobu Peninsula and Kume Shima."—General Joseph W. Stilwell, Tenth Army to Fleet Marine Force Reconnaissance Battalion. Disbandment Dissolution of the battalion following World War II was quick. The battalion embarked 1 – August 22 on the , a slow-moving troop transport from Okinawa, formulating plans to invade one of the southern Ryukyu Islands toward mainland Japan. They had progressed as far as Ulithi Atoll in the Caroline Islands when the first atomic bomb was dropped. The Company remained at Ulithi, 23 Aug – 11 Sep, and embarked the President Johnson, arriving at Pearl Harbor September 12. Major Jones was transferred to the continental United States after having served 25 months under combative service, leaving his executive officer, Markovitch, to command the FMFPAC Amphib Recon Battalion. ==Post World War II==
Post World War II
2nd Amphibious Reconnaissance Battalion Since the deactivation of the 'first' FMFPAC Amphibious Reconnaissance Battalion on September 24, 1945, there was no need for Fleet Marine Force-level reconnaissance between World War II and the Korean War. The only recon units that existed within the Marine Corps, were the Marine Division-level recon companies. After two years of the Korean War, the generals both at Fleet Marine Force, Atlantic and Fleet Marine Force, Pacific recommended to then-Marine Commandant Clifton Cates that the Marine Corps must reactivate the FMF-level reconnaissance capability. The Corps commanders need their own recon assets and should not rely on the already heavily tasked division recon companies. Major Regan Fuller formed the 2nd Amphib Recon Battalion in December 1950 at Camp Lejeune as commanding officer, including Leo Shinn as the executive officer and Harry C. Minnear became the S-3. With the 3rd Marine Division also reactivated (due to end of World War II), the Marine Corps now had three division-level recon companies and two small force-level amphib recon battalions. On the West Coast, the reappearance of a specialized reconnaissance unit at Camp Pendleton was promulgated by the motivated Colonel Victor Krulak from G-3 of FMFPac. After Krulak sent a message to the Commanding General of FMFPAC, the Amphibious Reconnaissance Platoon was formed on March 12, 1951. Located initially in the 15-area of Camp Pendleton, the Platoon later moved to the Del Mar area due to proximity to the ocean. First Lieutenant Francis "Bull" Kraince, who had been one of Houghton's Recon Company lieutenants in Korea, was designated officer in charge, and TSgts Ernest L. DeFazio and John W. Slagel, along with SSgt Neal D. King and Cpl Wiley B. Ballow were the only non-commissioned officers for the 55-man recon platoon. The remainder consisted of a platoon of "boots" directly out of the recruit depots. The platoon at one time or another included the Communications Chief (S-6), Sgt Al Gray and SSgt Dave Twohey, along with five or so more men who subsequently were commissioned Marine Colonels, and TSgt Stan Lamote and Puckett, who retired as a Major and Captain respectively. Reconstruction On 1 April 1953, the platoon was expanded into company size and Kraince was relieved by Major Witt as commanding officer. By October 1953, FMFPAC directed the redesignation of 1st Amphibious Reconnaissance Company, as the 1st Provisional Amphibious Reconnaissance Battalion, remaining under the Fleet Marine Force and further directed deployment of one company to Kaneohe as an element of the 1st Provisional Amphibious Reconnaissance Group. 1st Provisional Amphibious Recon Group was activated on October 14, 1953. Further, the 1st Provisional Recon Group deployed to Marine Corps Air Facility Kaneohe Bay, Territory of Hawaii, on October 19, 1953, for duty with the First Provisional Air-Ground Task Force. Leaving Headquarters and Service and B Companies at Camp Pendleton, A Company remained at Kaneohe Bay. Personnel were to be rotated on a six-month basis. On January 11, 1954, the Company at Camp Pendleton was redesignated Headquarters and Service Company of 1st Provisional Reconnaissance Battalion. A minor redesignation on August 31, 1954, altered the company's title to Headquarters Section, and six months later, on February 24, 1955, it was redesignated 1st Amphibious Reconnaissance Company and subsequently attached to Headquarters Battalion, 1st Marine Division the following October. Bobby Joe Patterson, initially an avid diver attached to 1st Combat Service Group's S-3 shop, later became one of the principal developers of submarine lock—in/lock-out gear. His proficiency was such that, like so many subsequent Force Recon Marines, he worked later for the Central Intelligence Agency from 1962 to 1964, relieved by another Force Recon Marine, Sergeant Dossier. Perhaps the last commanding officer of the 1st Amphibious Reconnaissance Company was Michael M. Spark, known to his peers as "Cycle Michael", who was killed later in Vietnam serving as regimental commander. Marine Corps Test Unit One By the time the two FMF Amphibious Reconnaissance Battalions were in their reconstruction period, Marine Corps Test Unit#1, MCTU#1, was also formed in 1954 for testing methods of mobilizing its Marines in the atomic age. Captain Michael Spark, Commanding Officer of 1st Amphib Recon Company was relieved by Major Bruce F. Meyers. When 1st Amphib Recon Company returned from operation in the Panama Canal aboard the USS Perch (ASSP-313), on June 16, 1957, the re-developed Research and Development, Reconnaissance Platoon from the Marine Corps Test Unit One, became the co-founder of 1st Force Reconnaissance Company, when it molded into the dismantled 1st Amphib Recon Company. ==Missions and training==
Missions and training
Training The Combat Swimming Company was formed before the end of World War II at Marine Corps Base Camp Pendleton as part of a staging regiment to train Marines listed for duty overseas in sea survival, knife and club fighting, and various survival skills. It trained pilots, UDT, and amphibious reconnaissance Marines as replacement personnel for the FMF Amphib Recon Battalion. The Commanding Officer of the Combat Swimming Company, Capt. "Dutch" Smith, had won a gold medal for diving in the 1932 Summer Olympics. It was presented to him by Adolf Hitler. One of the swimming instructors, Bruce F. Meyers, later became the officer-in-charge of the Troop Training Unit, Pacific of the Amphibious Reconnaissance School, a school established for the Navy UDT and amphib recon Marines, during their process for further training in amphibious reconnaissance in preparation for their first engagements in the Pacific. While Meyers was an instructor, Chesty Puller was the commanding officer of the Troop Training Unit. Meyers became a significant figure in the formation of the modern-FMF-level recon units. The first major test of amphib recon unit occurred during the Atlantic Fleet Landing Exercise, Number 52, or LANTFLEX 52, a series of training exercises conducted 15–17 November 1951. For this exercise, FMFLANT's Task Force 22 was supported by the 2nd Amphibious Reconnaissance Battalion under direct control of the Commander of Amphibious Troops. One company of the battalion participated during the fall of 1952 aboard the USS Sea Lion (ASSP-315), first in Vieques, then acting as reconnaissance-in-force along the coast of North Carolina of 16–20 October 1952; both on Onslow Beach and an amphib recon mission in the vicinity of Bogue Field, 9–13 November 1952. In early 1956, the company, now commanded by Major Eugenous M. Hovatter, was ordered to Hawaii to train with the 1st Provisional Marine Air-Ground Task Force at Kaneohe Bay, 11 March–25 April. The Company provided a 125-man aggressor force against 8000 Marines for the exercise on the island of Kauai. Success of the former Platoon at Adak was repeated during this operation, in which two objectives were not only reconnoitered but seized as well. The first was immediately captured and the other was taken so swiftly the exercise was repeated to satisfy shocked observing officers. During this exercise the unit was armed with three heavy machine guns, three light machine guns, and nine mortars. Mission statement Raiding was officially part of the reconnaissance mission which was now defined to include: the execution of amphibious reconnaissance missions; and to possess the capability of executing amphibious raids of limited scope. Capture of prisoners, military or civilian for interrogation purposes, contacting secret agents or informants, and the following special operations missions were assigned to the Marines: • Limited sabotage or harassment of enemy rear areas accessible by water • Minor demonstrations to cause the enemy to disclose his positions • Marking of beaches and landing points for the assault wave • Reconnoitering the road net and acting as guides for the initial assault waves of the Landing Force • Reconnaissance in limited force • Small-scale amphibious raids against enemy personnel and lightly defended installations ==Notes==
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