page_title: Military history of the United States during World War II
section_title: Kamikaze
hierarchical_section_title: Military history of the United States during World War II / Pacific Theater / Island hopping / Kamikaze
caption_attribution_description: Yokosuka D4Y3 (Type 33) "Judy" in a suicide dive against the USS Essex (CV-9), 1256 hours, November 25, 1944. Flaps are extended, the burning non-self-sealing port wing tank of the Yokosuka "Suisei" is trailing smoke.
context_page_description: The military history of the United States in World War II covers the war against the Axis powers, starting with the 7 December 1941 attack on Pearl Harbor. During the first two years of World War II, the United States had maintained formal neutrality as made official in the Quarantine Speech delivered by U.S. President Franklin D. Roosevelt in 1937, while supplying Britain, the Soviet Union, and China with war material through the Lend-Lease Act which was signed into law on 11 March 1941, as well as deploying the U.S. military to replace the British forces stationed in Iceland. Following the "Greer incident" Roosevelt publicly confirmed the "shoot on sight" order on 11 September 1941, effectively declaring naval war on Germany and Italy in the Battle of the Atlantic. In the Pacific Theater, there was unofficial early U.S. combat activity such as the Flying Tigers.
  During the war some 16,112,566 Americans served in the United States Armed Forces, with 405,399 killed and 671,278 wounded. There were also 130,201 American prisoners of war, of whom 116,129 returned home after the war. Key civilian advisors to President Roosevelt included Secretary of War Henry L.
context_section_description: In late 1944 the Japanese invented an unexpected and highly effective new tactic, the Kamikaze suicide plane aimed like a guided missile at American ships. The attacks began in October 1944 and continued to the end of the war. Experienced pilots were used to lead a mission because they could navigate; they were not Kamikazes, and they returned to base for another mission. The Kamikaze pilots were inexperienced and had minimal training; however most were well educated and intensely committed to the Emperor.
  Kamikaze attacks were highly effective at the Battle of Okinawa as 4000 kamikaze sorties sank 38 US ships and damaged 368 more, killing 4,900 sailors. Task Force 58 analyzed the Japanese technique at Okinawa in April 1945:
  "Rarely have the enemy attacks been so cleverly executed and made with such reckless determination. These attacks were generally by single or few aircraft making their approaches with radical changes in course and altitude, dispersing when intercepted and using cloud cover to every advantage. They tailed our friendlies home, used decoy planes, and came in at any altitude or on the water."
  The Americans decided the best defense against Kamikazes was to knock them out on the ground, or else in the air long before they approached the fleet. The Navy called for more fighters, and more warning, which meant combat air patrols circling the big ships, more radar picket ships (which themselves became prime targets), and more attacks on airbases and gasoline supplies. Japan suspended Kamikaze attacks in May 1945, because it was now hoarding gasoline and hiding planes in preparation for new suicide attacks if the Allies dared to invade their home islands. The Kamikaze strategy allowed the use of untrained pilots and obsolete planes, and since evasive maneuvering was dropped and there was no return trip, the scarce gasoline reserves could be stretched further. Since pilots guided their airplane like a guided missile all the way to the target, the proportion of hits was much higher than in ordinary bombing. Japan's industry was manufacturing 1,500 new planes a month in 1945. However, the quality of construction was very poor, and many new planes crashed during training or before reaching targets.
  Expecting increased resistance, including far more Kamikaze attacks once the main islands of Japan were invaded, the U.S. high command rethought its strategy and used atomic bombs to end the war, hoping it would make a costly invasion unnecessary.
caption: A "Judy" in a suicide dive against USS Essex. The dive brakes are extended and the port wing tank is trailing fuel vapor and smoke November 25, 1944.
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