Background 3 (Type 33
Suisei) "Judy" in a suicide dive against on 25 November 1944. The attack left 15 killed and 44 wounded. The
dive brakes are extended and the non-
self-sealing port wing tank trails a mist of fuel, smoke and hydraulic fluid. receives
sortie orders. Over 90% of the Navy's Kamikaze pilots were between 18 and 24 years of age.Before the official formation of
kamikaze units, pilots had made deliberate crashes as a last resort when their aircraft had suffered severe damage and they did not want to risk being captured or wanted to do as much damage to the enemy as possible, since they were crashing anyway. Such situations occurred in both the Axis and Allied air forces. Axell and Kase see these suicides as "individual, impromptu decisions by men who were mentally prepared to die". One example of this may have occurred on 7 December 1941 during the
attack on Pearl Harbor.
First Lieutenant Fusata Iida's aircraft had taken a hit and had started leaking fuel when he apparently used it to make a suicide attack on
Naval Air Station Kaneohe. Before taking off, he had told his men that if his aircraft was badly damaged he would crash it into a "worthy enemy target". In late February 1942, Imperial Japanese Headquarters mentioned, for the first time, that a "human bomb" or
Taiatari, had destroyed a US aircraft carrier. It was explained that the term, which meant "thrust of body," was the practice of Japanese airmen to dive with the full load of bombs on to their target. Another possible example occurred at the
Battle of Midway when a damaged American bomber flew at the 's bridge but missed. During the
Naval Battle of Guadalcanal the US flagship, , was heavily damaged during a Japanese bombing raid when a large twin-engined Japanese
Mitsubishi G4M "Betty" medium bomber, which was in flames from anti-aircraft fire, most likely intentionally crashed into her backup conning tower, destroying almost all of the backup command equipment for the flagship. Most of the officers and men stationed there, including the
executive officer, were killed or wounded. This de facto
kamikaze strike greatly changed the course of what was to happen during the infamous "Friday the 13th" battle 12 hours later. The carrier battles in 1942, particularly the Battle of Midway, inflicted irreparable damage on the
Imperial Japanese Navy Air Service (IJNAS), such that it could no longer field a large number of fleet carriers with well-trained aircrews. Japanese planners had based their assumptions on a quick war and lacked comprehensive programs to replace mounting losses to ships, pilots, and sailors. Prior to the war, Japanese carrier pilots were carefully selected after undergoing years of training in specialized schools, which produced high-quality aircrew but at low volume; the Japanese military never meaningfully expanded or restructured this training pipeline. The Battle of Midway, the
Solomon Islands campaign (1942–1945) and the
New Guinea campaign (1942–1945)notably the naval battles of the
Eastern Solomons (August 1942) and
Santa Cruz Islands (October 1942)decimated the IJNAS veteran aircrews, and replacing their combat experience proved impossible. During 1943–1944, US forces steadily advanced toward Japan. Newer US-made aircraft, especially the
Grumman F6F Hellcat and
Vought F4U Corsair, outclassed and soon outnumbered Japan's fighters. Tropical diseases, as well as shortages of spare parts and
fuel, made operations more and more difficult for the IJNAS. By the
Battle of the Philippine Sea (June 1944), the Japanese had to make do with obsolete aircraft and inexperienced aviators in the fight against better-trained and more experienced US Navy airmen who flew
radar-directed
combat air patrols. The Japanese lost over 400 carrier-based aircraft and pilots in the Battle of the Philippine Sea, effectively destroying the IJN's carrier air arm. Allied aviators called the action the "
Great Marianas Turkey Shoot". On 19 June 1944, aircraft from the carrier approached a US task group. According to some accounts, two made suicide attacks, one of which hit . The important Japanese base of
Saipan fell to the Allied forces on 15 July 1944. Its capture provided adequate forward bases that enabled US air forces using the
Boeing B-29 Superfortress to strike at the Japanese home islands. After the fall of Saipan, the Japanese High Command predicted that the Allies would try to capture the
Philippines, strategically important to Tokyo because of the islands' location between the
oilfields of Southeast Asia and Japan.
Beginnings Captain
Motoharu Okamura, in charge of the
Tateyama Base in Tokyo, as well as the 341st Air Group Home, was, according to some sources, the first officer to officially propose
kamikaze attack tactics. With his superiors, he arranged the first investigations into the plausibility and mechanisms of intentional suicide attacks on 15 June 1944. In August 1944, it was announced by the
Domei news agency that a flight instructor named Takeo Tagata was training pilots in
Taiwan for suicide missions. One source claims that the first
kamikaze mission occurred on 13 September 1944. A group of pilots from the army's 31st Fighter Squadron on
Negros Island decided to launch a suicide attack the following morning.
First Lieutenant Takeshi Kosai and a
sergeant were selected. Two bombs were attached to two fighters, and the pilots took off before dawn, planning to crash into carriers. They never returned, but there is no record of a
kamikaze hitting an Allied ship that day. According to some sources, on 14 October 1944, was hit by a deliberately crashed Japanese aircraft.
Rear Admiral Masafumi Arima, the commander of the 26th Air Flotilla (part of the
11th Air Fleet), is sometimes credited with inventing the
kamikaze tactic. Arima personally led an attack by a
Mitsubishi G4M "Betty" twin-engined bomber against a large , , near Leyte Gulf, on or about 15 October 1944. Arima was killed and part of an aircraft hit
Franklin. The Japanese high command and
propagandas seized on Arima's example. He was promoted
posthumously to
vice admiral and was given official credit for making the first
kamikaze attack. On 17 October 1944, Allied forces assaulted
Suluan Island, beginning the
Battle of Leyte Gulf. The Imperial Japanese Navy's 1st Air Fleet, based at
Manila, was assigned the task of assisting the Japanese ships that would attempt to destroy Allied forces in Leyte Gulf. That unit had only 41 aircraft: 34
Mitsubishi A6M Zero ("Zeke") carrier-based fighters, three
Nakajima B6N Tenzan ("Jill")
torpedo bombers, one
Mitsubishi G4M ("Betty") and two
Yokosuka P1Y Ginga ("Frances") land-based bombers, and one reconnaissance aircraft. The task facing the Japanese air forces seemed impossible. The 1st Air Fleet commandant,
Vice Admiral Takijirō Ōnishi, decided to form a suicide offensive force, the Special Attack Unit. In a meeting on 19 October at
Mabalacat Airfield (known to the US military as Clark Air Base) near Manila, Onishi told officers of the 201st Flying Group headquarters: "I don't think there would be any other certain way to carry out the operation [to hold the Philippines] than to put a 250 kg bomb on a Zero and let it crash into a US carrier, in order to disable her for a week."
First unit , holding a puppy, with four other pilots of the 72nd
Shinbu Squadron at
Bansei,
Kagoshima. Araki died the following day, at the age of 17, in a suicide attack on ships near Okinawa.
Commander Asaichi Tamai asked a group of 23 talented student pilots, all of whom he had trained, to volunteer for the special attack force. All of the pilots raised both of their hands, volunteering to join the operation. Later, Tamai asked Lieutenant
Yukio Seki to command the special attack force. Seki is said to have closed his eyes, lowered his head, and thought for ten seconds before saying: "Please do appoint me to the post." Seki became the 24th
kamikaze pilot to be chosen. He later said: "Japan's future is bleak if it is forced to kill one of its best pilots" and "I am not going on this mission for the Emperor or for the Empire ... I am going because I was ordered to." The names of the four subunits within the
Kamikaze Special Attack Force were
Unit Shikishima,
Unit Yamato,
Unit Asahi and
Unit Yamazakura. These names were taken from a patriotic
death poem by the Japanese classical scholar,
Motoori Norinaga. The poem reads: A less literal translation is: Ōnishi, addressing this unit, told them that their nobility of spirit would keep the homeland from ruin even in defeat.
Leyte Gulf: the first attacks from the tail of a "Judy" on the deck of . The "Judy" made a run on the ship approaching from dead astern; it was met by effective fire and the aircraft passed over the island and exploded. Parts of the aircraft and the pilot were scattered over the flight deck and the forecastle. Several suicide attacks, carried out during the
invasion of Leyte by Japanese pilots from units other than the Special Attack Force, have been described as the first
kamikaze attacks. Early on 21 October 1944, a Japanese aircraft deliberately crashed into the foremast of the heavy cruiser . or a
Mitsubishi Ki-51 of the 6th Flying Brigade,
Imperial Japanese Army Air Force. The attack killed 30 personnel, including the cruiser's captain,
Emile Dechaineux, and wounded 64, including the Australian force commander, Commodore
John Collins. By 26 October day's end, 55
kamikazes from the Special Attack Force had also damaged three large escort carriers: , , and (which had taken a
kamikaze strike forward of its aft elevator the day before); and three smaller escorts: USS
White Plains, , and
Kitkun Bay. In total, seven carriers were hit, as well as 40 other ships (5 sunk, 23 heavily damaged and 12 moderately damaged).
Main wave of attacks Early successes—such as the sinking of —were followed by an immediate expansion of the program, and over the next few months over 2,000 aircraft made such attacks. When Japan began to suffer intense
strategic bombing by
Boeing B-29 Superfortresses, the Japanese military attempted to use suicide attacks against this threat. During the northern hemisphere winter of 1944–45, the IJAAF formed the 47th Air Regiment, also known as the
Shinten Special Unit (
Shinten Seiku Tai) at Narimasu Airfield,
Nerima, Tokyo, to defend the
Tokyo Metropolitan Area. The unit was equipped with
Nakajima Ki-44 Shoki ("Tojo") fighters, whose pilots were instructed to collide with
United States Army Air Forces (USAAF) B-29s approaching Japan. Targeting the aircraft proved to be much less successful and practical than attacks against warships, as the bombers made for much faster, more maneuverable, and smaller targets. The B-29 also had formidable defensive weaponry, so suicide attacks against B-29s demanded considerable piloting skill to be successful, which worked against the very purpose of using expendable pilots. Even encouraging capable pilots to bail out before impact was ineffective because vital personnel were often lost when they mistimed their exits and were killed as a result. On 11 March, the US carrier was hit and moderately damaged at
Ulithi Atoll, in the Caroline Islands, by a
kamikaze that had flown almost from Japan, in a mission called
Operation Tan No. 2. On 20 March, the submarine survived a hit from an aircraft just off Japan. Purpose-built
kamikazes, opposed to converted fighters and dive-bombers, were also being constructed.
Ensign Mitsuo Ohta had suggested that piloted
glider bombs, carried within range of targets by a mother aircraft, should be developed. The First Naval Air Technical Bureau (
Kugisho) in
Yokosuka refined Ohta's idea.
Yokosuka MXY-7 Ohka rocket-powered aircraft, launched from bombers, were first deployed in
kamikaze attacks from March 1945. US personnel gave them the derisive nickname "
Baka Bombs" (
baka is Japanese for "idiot" or "stupid"). The
Nakajima Ki-115 Tsurugi was a simple, easily built propeller aircraft with a wooden airframe that used engines from existing stocks. Its non-retractable
landing gear was jettisoned shortly after takeoff for a suicide mission, recovered, and reused. Obsolete aircraft such as
Yokosuka K5Y biplane trainers were also converted to
kamikazes. During 1945, the Japanese military began stockpiling
Tsurugi, Yokosuka MXY-7 Ohka, other aircraft and
suicide boats for use against Allied forces expected to invade Japan. The invasion never happened, and few were ever used.
Allied defensive tactics (A6M2 Model 21) towards the end of its run at the
escort carrier on 25 October 1944. The aircraft exploded in mid-air moments after the picture was taken, scattering debris across the deck. In early 1945, US Navy aviator Commander
John Thach, already famous for developing effective aerial tactics against the Japanese such as the
Thach Weave, developed a defensive strategy against
kamikazes called the "
big blue blanket" to establish Allied
air supremacy well away from the carrier force. This recommended
combat air patrols (CAP) that were larger and operated farther from the carriers than before, a line of picket
destroyers and
destroyer escorts at least from the main body of the fleet to provide earlier
radar interception and improved coordination between fighter direction officers on carriers. This plan also called for around-the-clock fighter patrols over Allied fleets. A final element included intensive fighter sweeps over Japanese airfields, and bombing Japanese runways, using
delayed-action bombs making repairs more difficult. Late in 1944, the
British Pacific Fleet (BPF) used the high-altitude performance of its
Supermarine Seafires (the naval version of the Spitfire) on combat air patrol duties. Seafires were involved in countering the
kamikaze attacks during the
Iwo Jima landings and beyond. The Seafires' best day was 15 August 1945, shooting down eight attacking aircraft with a single loss. Allied pilots were more experienced, better trained and flying superior aircraft, making the poorly trained
kamikaze pilots easy targets. The US
Fast Carrier Task Force alone could bring over 1,000 fighter aircraft into play. Allied pilots became adept at destroying enemy aircraft before they struck ships. Allied gunners had begun to develop techniques to negate
kamikaze attacks. Light rapid-fire anti-aircraft weapons such as the
20 mm Oerlikon autocannons were still useful though the
40 mm Bofors was preferred; their high rate of fire and quick training remained advantageous, but they lacked the punch to take down a kamikaze bearing down on the ship they defended. It was found that heavy anti-aircraft guns such as the
5"/38 caliber gun (127 mm) were the most effective as they had sufficient firepower to destroy aircraft at a safe range from the ship, which was preferable since even a heavily damaged
kamikaze could reach its target. The speedy
Ohkas presented a very difficult problem for
anti-aircraft fire, since their velocity made
fire control extremely difficult. By 1945, large numbers of anti-aircraft shells with radiofrequency
proximity fuzes, on average seven times more effective than regular shells, became available, and the US Navy recommended their use against
kamikaze attacks.
Final phase kamikaze at the
Battle of Lingayen Gulf, 6 January 1945. (visible top left), 11 April 1945. The damage was superficial, and no-one was killed apart from the pilot. The peak period of
kamikaze attack frequency came during April–June 1945 at the
Battle of Okinawa. On 6 April 1945, waves of aircraft made hundreds of attacks in Operation Kikusui ("floating chrysanthemums"). At Okinawa,
kamikaze attacks focused at first on Allied
destroyers on
picket duty, and then on the carriers in the middle of the fleet. Suicide attacks by aircraft or boats at Okinawa sank or put out of action at least 30 US warships and at least three US
merchant ships, along with some from other Allied forces. The attacks expended 1,465 aircraft. Many warships of all classes were damaged, some severely, but no aircraft carriers,
battleships or
cruisers were sunk by
kamikaze at Okinawa. Most of the ships lost were destroyers or smaller vessels, especially those on picket duty. American carriers, with their wooden flight decks, appeared to suffer more damage from
kamikaze hits than the
armored-decked carriers of the
British Pacific Fleet. American carriers also suffered considerably heavier casualties from
kamikaze strikes; for instance, 389 men were killed in one attack on , greater than the combined number of fatalities suffered on all six Royal Navy armored carriers from all forms of attack during the entire war.
Bunker Hill and
Franklin were both hit (in ''Franklin's
case, by a dive bomber, not a kamikaze
) while conducting operations with fully fueled and armed aircraft spotted on deck for takeoff, an extremely vulnerable state for any carrier. Eight kamikaze'' hits on five British carriers resulted in only 20 deaths while a combined total of 15 bomb hits, most of weight or greater, and one torpedo hit on four carriers caused 193 fatal casualties earlier in the war—striking proof of the protective value of the armored flight deck. . The
kamikaze made a dent long and wide and deep in the armored flight deck. Eight crew members were killed, 47 were wounded, and 11 aircraft were destroyed. The resilience of well-armored vessels was shown on 4 May, just after 11:30, when there was a wave of suicide attacks against the British Pacific Fleet. One Japanese aircraft made a steep dive from "a great height" at the carrier and was engaged by anti-aircraft guns. Although the
kamikaze was hit by gunfire, it managed to drop a bomb that detonated on the flight deck, making a crater long, wide and deep. A long steel splinter speared down through the hangar deck and the main boiler room (where it ruptured a steam line) before coming to rest in a fuel tank near the aircraft park, where it started a major fire. Eight personnel were killed and 47 were wounded. One Corsair and ten
Grumman Avengers were destroyed. The fires were gradually brought under control, and the crater in the deck was repaired with concrete and steel plate. By 17:00, Corsairs were able to land. On 9 May,
Formidable was again damaged by a
kamikaze, as were the carrier and the battleship . The British were able to clear the flight deck and resume flight operations in just hours, while their American counterparts took a few days or even months, as observed by a US Navy liaison officer on who commented: "When a
kamikaze hits a US carrier it means six months of repair at
Pearl Harbor. When a
kamikaze hits a Limey carrier it's just a case of 'Sweepers, man your brooms'." Twin-engine aircraft were occasionally used in
kamikaze attacks. For example,
Mitsubishi Ki-67 Hiryū ("Peggy") medium bombers, based on Formosa, undertook
kamikaze attacks on Allied forces off Okinawa, while a pair of
Kawasaki Ki-45 Toryu ("Nick") heavy fighters caused enough damage for the destroyer to be scuttled. The last ship in the war to be sunk, the , was on a radar picket line off Okinawa when she was struck by an obsolete wood-and-fabric
Yokosuka K5Y biplane. During the final stage of World War II, the Imperial Japanese Army aviation employed numbers of kamikaze airstrikes against the
Red Army during the
Soviet–Japanese War in 1945. Between 9 August and 2 September 1945, several airstrikes involving kamikaze pilots were recorded. On 18 August, a Japanese Ki-45 flown by Lieutenant Yoshira Tsiohara attacked a tanker in the port of Vladivostok. The plane was shot down and the pilot was killed. He was found to have orders to attack the largest tanker in Vladivostok, and if he failed, to ram the biggest house in the city. On the same day, the Soviet minesweeper
KT-152 was sunk during the
Battle of Shumshu. It is believed to have been attacked by a
kamikaze. In the middle of August the Japanese military planned to dispatch a group of 30
kamikaze pilots from Japan to Korea to attack Soviet warships, but the Japanese leadership decided to surrender and the operation was cancelled.
Kamikazes also operated against Red Army ground units. On August 10, three
kamikazes attacked a tank column of the 20th Guards Tank Brigade. The paratroopers succeeded in shooting down two of the attacking aircraft, while the third crashed into a tank. During 12–13 August, 14 Japanese planes, including
kamikazes, targeted tanks of the 5th Guards Tank Corps. Soviet fighter aviation, which managed to destroy three enemy aircraft and an anti-aircraft artillery which lost two planes participated in repulsing the air raids. Nine
kamikazes crashed without hitting their targets. Damage from these attacks was negligible. On 17 August, the Kwantung Army command ordered its units to surrender, but some of the pilots disobeyed and the Japanese air attacks continued. On 18 August, convoys of the 20th and 21st Armored Brigade were attacked. The kamikazes traded six of their aircraft for a tank and a couple of cars. The
kamikazes also flew solo. On 18 August, several ammunition resupply vehicles carrying ammunition for BM-13 were destroyed by a
kamikaze in the Tao'an area. The personnel were unharmed, as they managed to evade the raid. On 19 August, nine aircraft raided the tanks of the 21st Guards Tank Brigade. Seven were shot down, but two planes broke through; one tank was destroyed and the other damaged. About the raid, the author of the book
Tanker on a foreign vehicle D. Loza recalls six Japanese aircraft attacked the convoy, which damaged one Sherman tank and destroyed a medical vehicle. Japanese commanders ordered weapons depots to be secured and the propellers of aircraft on airfields to be removed to stop these sorties. Supposedly, the
kamikazes carried out more than 50 suicide attacks against the Soviet Red Army in August 1945. That is the number of aircraft the Japanese attributed to "other losses". Overall, the
kamikaze airstrikes proved ineffective and had little or no effect on the Red Army during the Soviet–Japanese War. Vice Admiral
Matome Ugaki, the commander of the IJN 5th Air Fleet based in Kyushu, participated in one of the final
kamikaze attacks on American ships on 15 August 1945, hours after Japan's announced surrender. On 19 August 1945, 11 young officers under Second Lieutenant Hitoshi Imada, attached to the 675th Manchuria Detachment, accompanied by two women of their engagement, left the Daikosan airfield and made a final aerial suicide attack against one of the Soviet armored units that had
invaded Manchuria known as the Shinshu Fumetsu Special Attack Corps (Japanese: 神州不滅特別攻撃隊), The last
kamikaze attacks were recorded on 20 August 1945. Shortly afterward, the main strength of the Japanese Army began to lay down its arms in surrender per the
Emperor's
broadcast. The Soviet–Japanese War, and World War II, had come to an end. At the time of the surrender, the Japanese had more than 9,000 aircraft in the home islands available for
kamikaze attacks, and more than 5,000 had already been specially fitted for suicide attack to resist the planned either American or Soviet invasion. ==Effects==