List of Japanese operations during World War II

This is a list of known Japanese operations planned, executed or aborted during the Second World War.

• Operation FU 1940 – invasion of French Indo-China
• Operation AI 1941 – attack on Pearl Harbor, Hawaii, United States
• Operation DE 1941 – invasion of Dutch East Indies
• Operation T – invasion of Thailand
• Operation E 1941 – invasion of China and Northeast British Malaya
• Operation M 1941 – invasion of the Philippine Islands
• Operation B 1941 – invasion of British Borneo and Dutch Borneo
• Operation AL 1942 – invasion of the Aleutian Islands, Alaska, United States
• Operation B 1942 – invasion of Burma
• Operation C 1942 – reconnaissance and raid operations in the Indian Ocean
• Operation D 1942 – invasion of the Andaman Islands
• Operation H 1942 – invasion of Celebes, Ambon and Timor
  • Invasion of Celebes (1942)
  • Battle of Ambon
  • Battle of Timor
• Operation J 1942 – invasion of Java, Netherlands East Indies
• Operation K 1942 – reconnaissance and air raid on Pearl Harbor, Hawaii, United States
• Operation Ka 1942 – plan to destroy the American fleet and recapture Guadalcanal, Solomon Islands
• Operation L 1942 – landing operation in Palembang, Sumatra
• Operation MI 1942 – aborted invasion of Midway Island
• Operation MO 1942 – aborted invasion of Port Moresby, New Guinea
• Operation R 1942 – invasion of Rabaul, New Britain and Kavieng, New Ireland
• Operation SR 1942 – invasion of Lae and Salamaua, New Guinea
• ( Operation ? ) 1942 – attack along the Kokoda track (New Guinea)
• Operation T 1942 – invasion of northern Sumatra
• Operation U 1942 – invasion of Burma
• Operation I 1943 – air raid against Allied advances on New Guinea and Guadalcanal, Solomon Islands
• Operation KE 1943 – evacuation of Guadalcanal, Solomon Islands
• Operation KE (Kiska evacuation) 1943 – evacuation of Kiska, Aleutian Islands, Alaska, United States
• Operation RY 1942 – invasion of Nauru and Ocean islands
• Operation RO 1943 – defensive plan against Allied attacks on Rabaul, New Britain
• Operation Ta 1943 – attack on Bougainville in the Solomon Islands
• Operation A-Go 1944 – attack of the American fleet off Saipan, Mariana Islands
• Operation Ban-Go 1944 – defensive operation at the Irrawaddy River in Burma
• Operation Dan-Go 1944 – operation after the failed operation U-Go offensive in India
• Operation FS 1944 – cancelled plan to isolate Australia by capturing New Caledonia, Samoa, and Fiji
• Operation Fu-Go 1944 – aerial bombing of the United States via balloons
• Operation Ha-Go 1944 – action to isolate and destroy Anglo-Indian forces at Arakan, Burma; precursor to operation U-Go
• Operation Ichi-Go 1944 – attack in Eastern China to link up Northern China and Indochina
• Operation Kan-Go 1944 – defensive plan in Southern Burma
• Operation Kon 1944 – defensive operation on Biak Island, New Guinea
• Operation Sho I 1944 – attack of the American fleet off Leyte, Philippine Islands; part of operation Sho-Go
• Operation Sho II 1944 – defence plan for Formosa and the Ryukyu Islands, Japan; part of operation Sho-Go
• Operation Sho III 1944 – defence plan for Honshū, Japan; part of operation Sho-Go
• Operation Sho IV 1944 – defence plan for Hokkaido, Japan; part of operation Sho-Go
• Operation Sho-Go 1944 – defence plan against American advances toward Japan
• Operation Ta 1944 – attack on American forces at Cape Torokina, Bougainville, Solomon Islands
• Operation TA 1944 – convoys in and out of the Philippines.
• Operation Take-Ichi 1944 – convoys to the Doberai Peninsula in Western New Guinea
• Operation To-Go 1944 – phase one of Japanese attack in Eastern China; part of operation Ichi-Go
• Operation U-Go 1944 – assault on Imphal and Kohima, India
• Operation Yu/Operation Tatsumaki 1944 – surprise attack raid on American shipping at Majuro atoll
• Operation Arashi 1945 – air raid on Ulithi Atoll, Caroline Islands
• Operation Hikari 1945 – reconnaissance of Ulithi Atoll, Caroline Islands; part of operation Arashi
• Operation Ketsu-Go 1945 – defence plan against potential American invasion of the Japanese home islands
• Operation Kikusui 1945 – special attack against American ships off Okinawa, Japan
• Operation Tan 2 1945 – special attack mission against the Allied anchorage at Ulithi, Caroline Islands
• Operation Ten-Go 1945 – defence plan in 1945, consisting of four likely scenarios. Operation Ten'ichi-Go, the first scenario in Ten-Go, is a reaction plan against Allied invasion of Okinawa.
• Operation Ken 1945 – cancelled operation to use transports to land suicide troops on American airfields in the Mariana Islands
• Operation Kon-Go 1945 – cancelled offensive against American ships using manned torpedoes

See also

• Japanese expansion (1941–1942)