Market278th Armored Cavalry Regiment
Company Profile

278th Armored Cavalry Regiment

The 278th Armored Cavalry Regiment, previously the 117th Infantry Regiment, is an armored brigade combat team of the Tennessee Army National Guard with headquarters in Knoxville, Tennessee. It is the only National Guard Armored Cavalry Regiment and one of only two in the entire US Army order of battle, the other being the active duty 11th ACR. The unit traces its lineage from the volunteer militias of Eastern Tennessee and has participated in conflicts from the Revolutionary War to the Iraq War. In May 2025, the Pentagon announced that the 278th Armored Cavalry Regiment will convert to a Mobile Brigade Combat Team.

Missions
• State mission ::Provide trained and disciplined troops for domestic emergencies or as otherwise required by state law. • Federal mission ::Maintain properly trained and equipped units available for prompt mobilization for war, national emergency, or as otherwise needed. ==History==
History
Formation of predecessor units The Third Brigade of the Tennessee Militia was absorbed into the National Guard of the United States on 25 March 1887 as the 3rd Infantry Regiment, with headquarters in Knoxville. The 1st Battalion was located in Knoxville, and the 2nd Battalion was located in Chattanooga. In the spring of 1898, the battalions were consolidated to form the 6th Infantry Regiment. Between 18 and 20 May 1898, the 6th Infantry was re-designated as the 3rd Tennessee Volunteer Infantry Regiment.. World War II On 16 September 1940, the 117th Infantry Regiment was inducted into federal service at home stations for a period of one year. The regiment was moved by train and arrived at Fort Jackson, South Carolina, on 24 September 1940. The regiment was housed in pyramidal tents at Fort Jackson. Colonel Grant A. Schlieker assumed command of the regiment on 12 August 1940. In October 1940, the unit was brought to war strength with Selective Service men, primarily from the Knoxville area. On 29 April 1977, the 278th (Separate) Infantry Brigade was reorganized and re-designated the 278th Armored Cavalry Regiment, a separate corps maneuver Unit. Colonel Russell A. Newman was appointed as its first commander. The regimental motto, "I Volunteer Sir", was inspired by the volunteer units of east Tennessee in the Mexican–American War. The regiment's headquarters and headquarters troop (HHT) was redesignated on 1 May from the headquarters and headquarters company (HHC) of the 278th Brigade. The 1st and 2nd Squadrons were redesignated from existing units on the same day. The 2nd Battalion, 117th's HHC was redesignated as the HHT of the 278th ACR's 1st Squadron at Athens. 1st Squadron was mostly redesignated from the 2nd Battalion. The 1st Squadron's Troop A was redesignated from Company B at Cleveland, Troop B from the Support Company at Sweetwater, Detachment 1 of Troop B from Company C at Lenoir City, Troop C from the 376th Signal Company at Newport, Company D from Detachment 1 of the 130th Military Police Company at Oak Ridge, and the Howitzer Battery from Company A at Maryville. The headquarters and headquarters detachment of the 330th Transportation Battalion at Kingsport was redesignated as the HHT of the 2nd Squadron. Troop E was redesignated from the 1130th Transportation Company at Morristown, Troop F from the 1174th Transportation Company at Bristol, Troop G from Detachment 1 of the 376th Signal Company at Greeneville, Company H from the 130th Military Police Company at Clinton, and the Howitzer Battery from Detachment 1 of the 117th's 2nd Battalion at Knoxville. On 30 September 1978, the 777th Maintenance Company (GS), a separate unit stationed in Knoxville at the Knoxville Armory, was reorganized and redesignated as the Air Troop of the 278th. The unit was later relocated to Alcoa. A year later, the 450th Assault Helicopter Company, stationed in Smyrna, was reorganized and redesignated as the Attack Helicopter Troop of the regiment. The headquarters and headquarters detachment of the 130th Aviation Battalion and the 1155th Transportation Company (Aviation Intermediate Maintenance) were attached to the 278th by the State Area Command to serve as command and control for the separate air troop and attack helicopter troop. The 278th RCT took over from the 30th BCT, North Carolina, commanded by BG Danny Hickman on Christmas Eve 2004 at FOB Caldwell where the regimental headquarters was established. Initially the 278th RCT fell under Task Force Danger and the 1st Infantry Division. In February 2005 the 278th became part of Task Force Liberty commanded by the 42nd Infantry Division. The 1/278th and the 386th Engineer Battalion were located at FOB Caldwell along with the regimental HQ. The regiment operated along the Iranian border in the Diyala Province and in the center of an ethnic triangle formed by Arabs, Kurds and Turkomen in the Salah Ah Din Province. Each squadron was assigned to a FOB (forward operating base) and detachments sent to other locations, with some performing convoy escort missions from Kuwait to Mosul. The 101st Airborne Division (AASLT) replaced the 278th RCT upon the 278th's redeployment to the United States. FOB assignments: FOB Caldwell (Balad Ruz- Kirkush Military Training Base): RHHT, Regimental Reconnaissance Troop (RRT), SPT/278th ACR,1/278th ACR and attachments. FOB Cobra (Jalula, Iraq): 3/278th ACR and attachments, B Co 1/128 Infantry and soldiers from C Co 386th Engineer Battalion. FOB Bernstein (Tuz Khurmatu, Iraq): 2/278th ACR and attachments. During their deployment to FOB Bernstein and AO Peacemaker in 2004–05 members of the medical platoon, 2/278th ACR were awarded six Army Commendation Medals with Device for Valor, one Bronze Star with Device for Valor and two Purple Hearts for actions they were involved in. FOB McKenzie (Samara East Airbase):3rd Platoon, Lightning Troop 3/278th. Attachments from Pasadena, TX and Wisconsin infantry. FOB O'Ryan (Near Ad Dujayl, Iraq): D Co 1/278th ACR (attached to 1–128 Infantry Battalion, 32nd Infantry Brigade, Wisconsin ARNG) which was assigned to the 1st Brigade (Raiders), 3rd Infantry Division. International Zone (Baghdad Iraq): Troop F 2/278th ACR. Attached to 1st Cavalry (3–8 Cavalry) and later under 3rd Infantry Division (4–64 Tuskers) Under the name Task-force Baghdad. The FOBs included: Black hawk, Prosperity, Union (Trojan Horse). This troop was responsible for security mission that included a mission with the CIA to guard the interim prime minister's house. Other missions included patrolling, providing listening and observation posts (LP/OPs) during elections and for force protection of the International Zone. This unit conducted checkpoints, convoy operations and provided security for the Naval Special Warfare EOD teams as well as Australian bomb squads. Eight 278th ACR soldiers were killed in action in Iraq in 2005. Two more died of accidents or natural causes. Operation Iraqi Freedom 9-11 The 278th deployed again to Iraq in 2010 in support of Operation Iraqi Freedom 9-11. The 278th mobilized out of JFTC Shelby (Camp Shelby) beginning in December 2009 with attachments from Michigan, Wisconsin, Tennessee, and West Virginia National Guard units. The 278th acted as the convoy security element for the 13th ESC, and was tasked with the protection of retrograde activities and FOB closures from the Turkish border to Kuwait. FOB Assignments: Camp Taji: RHHT/278 ACR, SPT/278 ACR, RTS/278 ACR COB Speicher: 3/278 ACR Joint Base Balad: 2/278 ACR FOB Q-West: 1/278 ACR FOB Marez/Diamond Back: RFS/278 ACR FOB Prosperity: Spc. Robert D. West received a Purple Heart and Combat Action Badge for injuries sustained on 31 May 2010 while assigned to 2nd Platoon RFS/278 ACR on a return mission to Marez/Diamond. After passing through an Iraqi Army checkpoint his vehicle was hit with two IEDs, injuring West. West climbed back into the turret and manned the .50BMG until he and the vehicle's crew were moved to surrounding vehicles. After undergoing medical treatment West returned to his unit and remained in theatre until his unit redeployed to the United States in August 2010 with no fatalities. == Organization ==
Organization
278th Armored Cavalry Regiment, in Knoxville • Headquarters and Headquarters Troop, 278th Armored Cavalry Regiment, in Knoxville • 1st Squadron, 278th Armored Cavalry Regiment, in Henderson • Headquarters and Headquarters Troop, 1st Squadron, 278th Armored Cavalry Regiment, in Henderson • Troop A (Tank), 1st Squadron, 278th Armored Cavalry Regiment, in Milan • Troop B (Tank), 1st Squadron, 278th Armored Cavalry Regiment, in Ashland City • Troop C (Mechanized Infantry), 1st Squadron, 278th Armored Cavalry Regiment, in Clarksville2nd Squadron, 278th Armored Cavalry Regiment, in Cookeville • Headquarters and Headquarters Troop, 2nd Squadron, 278th Armored Cavalry Regiment, in Cookeville • Detachment 1, Headquarters and Headquarters Troop, 2nd Squadron, 278th Armored Cavalry Regiment, in Gallatin • Troop E (Mechanized Infantry), 2nd Squadron, 278th Armored Cavalry Regiment, in Jamestown • Detachment 1, Troop E (Mechanized Infantry), 2nd Squadron, 278th Armored Cavalry Regiment, in Livingston • Troop F (Mechanized Infantry), 2nd Squadron, 278th Armored Cavalry Regiment, in McMinnville • Troop G (Tank), 2nd Squadron, 278th Armored Cavalry Regiment, in Crossville3rd Squadron, 278th Armored Cavalry Regiment, in Temple (TX) — (Texas Army National Guard) • Headquarters and Headquarters Troop, 3rd Squadron, 278th Armored Cavalry Regiment, in Temple • Troop I (Tank), 3rd Squadron, 278th Armored Cavalry Regiment, at Fort Hood • Troop K (Tank), 3rd Squadron, 278th Armored Cavalry Regiment, in Temple • Troop L (Mechanized Infantry), 3rd Squadron, 278th Armored Cavalry Regiment, in Temple • 4th Squadron, 278th Armored Cavalry Regiment, in Mount Carmel • Headquarters and Headquarters Troop, 4th Squadron, 278th Armored Cavalry Regiment, in Mount Carmel • Troop N, 4th Squadron, 278th Armored Cavalry Regiment, in Sweetwater • Troop O, 4th Squadron, 278th Armored Cavalry Regiment, in Newport • Troop P, 4th Squadron, 278th Armored Cavalry Regiment, in Greeneville • Troop Q (Tank), 4th Squadron, 278th Armored Cavalry Regiment, in RockwoodField Artillery Squadron, 278th Armored Cavalry Regiment, in Winchester • Headquarters and Headquarters Battery, Field Artillery Squadron, 278th Armored Cavalry Regiment, in Winchester • Battery A, Field Artillery Squadron, 278th Armored Cavalry Regiment, in Maryville • Detachment 1, Battery A, Field Artillery Squadron, 278th Armored Cavalry Regiment, in Pigeon Forge • Battery B, Field Artillery Squadron, 278th Armored Cavalry Regiment, in Covington • Battery C, Field Artillery Squadron, 278th Armored Cavalry Regiment, in SpartaRegimental Engineer Squadron, 278th Armored Cavalry Regiment, in Lebanon • Headquarters and Headquarters Troop, Regimental Engineer Squadron, 278th Armored Cavalry Regiment, in Lebanon • Troop A (Combat Engineer), Regimental Engineer Squadron, 278th Armored Cavalry Regiment, in Dunlap • Detachment 1, Troop A (Combat Engineer), Regimental Engineer Squadron, 278th Armored Cavalry Regiment, in Monteagle • Troop B (Engineer Support), Regimental Engineer Squadron, 278th Armored Cavalry Regiment, in Russellville • Troop C (Signal), Regimental Engineer Squadron, 278th Armored Cavalry Regiment, in Knoxville • Troop D (Military Intelligence), Regimental Engineer Squadron, 278th Armored Cavalry Regiment, in Nashville • Detachment 1, Troop D (Military Intelligence), Regimental Engineer Squadron, 278th Armored Cavalry Regiment, at Naval Air Station Patuxent River (MD) (RQ-28A UAV) — (Maryland Army National Guard) • Regimental Support Squadron, 278th Armored Cavalry Regiment, in Columbia • Headquarters and Headquarters Troop, Regimental Support Squadron, 278th Armored Cavalry Regiment, in Columbia • Troop A (Distribution), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Lobelville • Detachment 1, Troop A (Distribution), Regimental Support Squadron, 278th Armored Cavalry Regiment, in New Tazewell • Troop B (Maintenance), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Centerville • Troop C (Medical), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Louisville • Troop D (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Clinton — attached to 4th Squadron • Troop E (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Smyrna — attached to Regimental Engineer Squadron • Troop F (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Lewisburg — attached to Field Artillery Squadron • Troop G (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Humboldt — attached to 1st Squadron • Detachment 1, Troop G (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Parsons • Troop H (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Temple (TX) — attached to 3rd Squadron (Texas Army National Guard) • Troop I (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Lafayette — attached to 2nd Squadron • Detachment 1, Troop I (Forward Support), Regimental Support Squadron, 278th Armored Cavalry Regiment, in Gordonsville == Equipment ==
Equipment
1st and 3rd Squadrons are armored battalions and have 2 tank companies each and 1 mechanized infantry company each. Each tank company (troop) is equipped with 14 M1A1 SA (situational awareness variant) main battle tanks. Each Infantry company (troop) is equipped with M2A3 Bradley Fighting Vehicle. 2nd squadron is a mechanized infantry battalion and consists of 2 mechanized infantry companies and 1 tank company. The Field Artillery Squadron (FAS) consists of three artillery batteries (fielding M109A6 Paladins), a support troop, and headquarters troop. ==Honors==
Honors
Campaign participation credit • WORLD WAR I • Offensive • Ypres-Lys • Flanders 1918 • WORLD WAR II • Normandy • Northern France • Rhineland • Ardennes-Alsace • Central Europe • Guinea • Leyte • Luzon • Ryukyus (with arrowhead) HHT/2/278 ACR (Cookeville); HQ/SPT/278 ACR (Smyrna); and B(-)/1/278 ACR (Clarksville) each additionally entitled to: • WORLD WAR II • Southern Philippines DecorationsPresidential Unit Citation (Army), Streamer embroidered ST. BARTHELMY • Presidential Unit Citation (Army), Streamer embroidered UBACH • Presidential Unit Citation (Army), Streamer embroidered SCHERPENSEEL • French Croix de Guerre with Silver Star, World War II, Steamer embroidered SCHERPENSEEL • French Croix de Guerre with Palm, World War II, Steamer embroidered FRANCE • Belgian Fourragere 1940 • Cited in the Order of the Day of the Belgian Army for actions in Belgium • Cited in the Order of the Day of the Belgian Army for actions in ARDENNES • A(-)/RFS/278 ACR (Maryville), additionally entitled to: • French Croix de Guerre with Palm, World War II, Steamer embroidered MOSELLE RIVER • HHT/2/278 ACR (Cookeville); HHT/SPT/278 (Smyrna): and B(-)/1/278 ACR (Clarksville) each additionally entitled to: • Philippine Presidential Unit Citation, Streamer embroidered 17 OCTOBER 1944 TO 4 JULY 1945 Medal of Honor recipients ;World War I • James E. Karnes ::Rank and organization: Sergeant, Company D, 117th Infantry, 30th Division. ::Place and date: Near Estrees, France, 8 October 1918. ::Citation: During an advance, his company was held up by a machinegun, which was enfilading the line. Accompanied by another soldier, he advanced against this position and succeeded in reducing the nest by killing 3 and capturing 7 of the enemy and their guns. • Edward R. Talley ::Rank and organization: Sergeant, Company L, 117th Infantry, 30th Division. ::Place and date: Near Ponchaux, France, 7 October 1918. ::Citation: Undeterred by seeing several comrades killed in attempting to put a hostile machinegun nest out of action, Sgt. Talley attacked the position single-handed. Armed only with a rifle, he rushed the nest in the face of intense enemy fire, killed or wounded at least 6 of the crew, and silenced the gun. When the enemy attempted to bring forward another gun and ammunition he drove them back by effective fire from his rifle. • Calvin John Ward ::Rank and organization: Private, Company D, 117th Infantry, 30th Division. ::Place and date: Near Estrees, France, 8 October 1918. ::Citation: During an advance, Pvt. Ward's company was held up by a machinegun, which was enfilading the line. Accompanied by a noncommissioned officer, he advanced against this post and succeeded in reducing the nest by killing 3 and capturing 7 of the enemy and their guns. ;World War II • Harold G. Kiner ::Rank and organization: Private, Company F, 117th Infantry, 30th Infantry Division. ::Place and date: Near Palenberg, Germany, 2 October 1944. ::Citation: With 4 other men, he was leading in a frontal assault 2 October 1944, on a Siegfried Line pillbox near Palenberg, Germany. Machinegun fire from the strongly defended enemy position away pinned down the attackers. The Germans threw hand grenades, one of which dropped between Pvt. Kiner and 2 other men. With no hesitation, Private Kiner hurled himself upon the grenade, smothering the explosion. By his gallant action and voluntary sacrifice of his own life, he saved his 2 comrades from serious injury or death. ==Gallery==
Gallery
File:278th Cavalry, Tennessee National Guard, Training in Kuwait (1).jpg|Soldiers assigned to 1st Platoon, Regimental Troops Squadron, 278th ACR. File:278th Cavalry, Tennessee National Guard, Training in Kuwait (2).jpg|Live fire training at Camp Buehring, Kuwait, prior to deploying to Iraq. File:278th Cavalry, Tennessee National Guard, Training in Kuwait (3).jpg|Training mounted and dismounted firing techniques. File:278th Cavalry, Tennessee National Guard, Training in Kuwait (4).jpg|Soldiers take cover behind a HMMWV during live fire training. File:278th Cavalry, Tennessee National Guard, Training in Kuwait.jpg|Soldiers test fire their weapons prior to entering Iraq. ==References==
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