African Front
Main article: Mediterranean and Middle East theatre of World War II
* North African campaign: June 1940 – May 1943
   * Western Desert campaign: June 1940 – February 1943
       * Italian invasion of Egypt: September 1940
       * Operation Compass: December 1940 – February 1941
           * Battle of Nibeiwa: December 1940
           * Battle of Sidi Barrani: December 1940
           * Siege of Giarabub: December 1940 – March 1941
           * Battle of Bardia: January 1941
           * Battle of Mechili: January 1941
           * Capture of Kufra: January–March 1941
           * Battle of Beda Fomm: February 1941
       * Operation Sonnenblume: February–May 1941
       * Siege of Tobruk: April–November 1941
           * Bardia raid: April 1941
           * Operation Brevity: May 1941
           * Operation Skorpion: May 1941
           * Operation Battleaxe: June 1941
           * Twin Pimples raid: July 1941
       * Operation Crusader: November–December 1941
           * First Action at Bir el Gubi: November 1941
           * Battle of Point 175: November–December 1941
           * Second Action at Bir el Gubi: December 1941
       * Battle of Gazala: May–June 1942
           * Battle of Bir Hakeim: May–June 1942
       * First Battle of El Alamein: July 1942
       * Battle of Alam el Halfa: August–September 1942
       * Second Battle of El Alamein: October–November 1942
       * Battle of El Agheila: December 1942
   * Operation Torch: November 1942
       * Operation Terminal: 8 November 1942
       * Naval Battle of Casablanca
   * Tunisia Campaign: November 1942 – May 1943
       * Battle of the Kasserine Pass: February 1943
       * Battle of Sidi Bou Zid: February 1943
       * Battle of Medenine: March 1943
       * Battle of the Mareth Line: March 1943
       * Battle of El Guettar: March–April 1943
       * Operation Flax: April 1943
       * Battle of Longstop Hill (1943): April 1943
       * Battle of Hill 609: April–May 1943
       * Operation Vulcan: May 1943
       * Operation Retribution: May 1943
       * Operation Strike: May 1943
* East African Campaign: June 1940 – November 1941
   * Italian invasion of Sudan: June 1940
   * Italian conquest of British Somaliland: August 1940
       * Battle of Tug Argan
   * Battle of Agordat: January 1941
   * Battle of Keren: February 1941
   * Siege of Saïo: March 1941
   * Battle of Amba Alagi: May 1941
   * Battle of Culqualber: August–November 1941
   * Battle of Gondar: November 1941
* West African Campaign: September–November 1940
   * Battle of Dakar: September 1940
   * Battle of Gabon: November 1940
* South African Internal Campaign: 1941–1942
Middle Eastern Front
Main article: Mediterranean and Middle East theatre of World War II
* Iraq Campaign: May 1941
* Syria–Lebanon Campaign: June–July 1941
   * Battle of the Litani River: June 1941
   * Battle of Sidon (1941): June 1941
   * Battle of Kissoué: June 1941
   * Battle of Merdjayoun: June 1941
   * Battle of Palmyra: July 1941
   * Battle of Deir ez-Zor: July 1941
   * Battle of Damour: July 1941
   * Battle of Beirut: July 1941
* Iran Campaign: August–September 1941
Mediterranean Front
Main article: Mediterranean and Middle East theatre of World War II
* Battle of the Mediterranean Sea: June 1940–May 1945
   * Battle of the Espero Convoy
   * Attack on Mers-el-Kébir
   * Battle of Calabria
   * Battle of Cape Spada
   * Battle of Cape Passero (1940)
   * Battle of Taranto
   * Battle of Cape Spartivento
   * Operation Excess
   * Raid on Souda Bay
   * Battle of Cape Matapan
   * Battle of the Tarigo Convoy
   * Operation Substance
   * Operation Halberd
   * Battle of the Duisburg Convoy
   * Battle of Cape Bon (1941)
   * First Battle of Sirte
   * Raid on Alexandria (1941)
   * Second Battle of Sirte
   * Operation Vigorous
   * Operation Pedestal
   * Battle of Skerki Bank
   * Raid on Algiers
   * Battle of the Cigno Convoy
   * Battle of the Campobasso Convoy
   * Battle of the Messina convoy
   * Operation Scylla
   * Battle of the Ligurian Sea
* Siege of Malta: June 1940 – December 1942
* Balkan campaign: October 1940 – June 1941
   * Italian Invasion of Greece: October 1940 – April 1941
       * Battle of Pindus
       * Battle of Elaia–Kalamas
       * Battle of Morava–Ivan
           * Battle of Korytsa
       * Battle of Saranda
       * Battle of Himara
       * Capture of Klisura Pass
       * Italian Spring Offensive
           * Battle of Hill 731
   * Axis invasion of Yugoslavia: April 1941
       * Bombing of Belgrade
       * Hungarian Offensive
       * Battle for Belgrade
       * Battle For Skopje
       * Yugoslav-Albania Front
   * German invasion of Greece: April 1941
       * Battle of the Metaxas Line
       * Battle of Vevi (1941)
       * Battle of Ptolemaida
       * Battle of Kleisoura Pass
       * Battle of Lake Kastoria
       * Battle of Tempe Gorge
       * Battle of Athens (1941)
       * Battle of Thermopylae (1941)
       * Battle of Crete: May 1941
           * Battle of Rethymno
           * Battle of 42nd Street
* Operation Agreement: September 1942
* Operation Strangle: March 1943 – June 1944
* Allied invasion of Sicily: July–August 1943
   * Operation Ladbroke
   * Operation Fustian
   * Battle of Troina
* Allied invasion of Italy: September 1943
   * Operation Slapstick
* Dodecanese Campaign: September–October 1943
   * Battle of Leros
   * Battle of Kos
   * Battle of Rhodes
* Battle of Naples: September 1943
* Volturno Line: October–November 1943
* Barbara Line: October–November 1943
* Air Raid on Bari: December 1943
* Battle of Ortona: December 1943
* Bernhardt Line: December 1943 – January 1944
* Moro River Campaign: December 1943
* Battle of Monte Cassino: January–May 1944
   * Operation Diadem
* Battle of Anzio: January–June 1944
   * Battle of Cisterna
* Trasimene Line: June–July 1944
* Battle of Ancona: June–July 1944
* Gothic Line: August–December 1944
   * Battle of Gemmano
   * Battle of Rimini
* Battle of San Marino: September 1944
* Battle of Garfagnana: December 1944
* Battle of Monte Castello: November 1944 – February 1945
* Spring 1945 offensive in Italy: April–May 1945
   * Battle of Bologna:
   * Battle of the Argenta Gap:
   * Battle of Collecchio:
Western Front
Main article: Western Front (World War II)
* French offensive into Germany: September 1939
* Operation Weserübung: April–June 1940
   * German Invasion of Denmark
   * German invasion of Norway
       * Battles of Narvik
       * Battle of Drøbak Sound
       * Battle of Midtskogen
       * Battle of Dombås
       * Battle of Hegra Fortress
       * Åndalsnes landings
       * Battle of Gratangen
       * Battle of Høljarast Bridge
       * Battle for Kvam
       * Battle of Vinjesvingen
* Battle of the Netherlands: May 1940
   * Battle for The Hague
   * Battle of Rotterdam
   * Battle of Mill
   * Battle of Maastricht
   * Battle of Zeeland
   * Battle of the Grebbeberg
   * Battle of the Afsluitdijk
   * Rotterdam Blitz
* Battle of Belgium: May 1940
   * Battle of Fort Eben-Emael
   * Battle of Hannut
   * Battle of Gembloux
   * Battle of the Ypres–Comines Canal
   * Battle of the Lys
* German invasion of Luxembourg: May 1940
* Battle of France: May–June 1940
   * Battle of Sedan
   * Battle of Montcornet
   * Battle of Arras
   * Battle of Boulogne
   * Siege of Calais
   * Battle of Abbeville
   * Siege of Lille
   * German bombing of Paris
   * Battle of Dunkirk
       * Dunkirk evacuation
   * Battle of Lagarde
   * Battle of Saumur
* Italian invasion of France: June 1940
* Battle of Britain: July–October 1940
   * Kanalkampf
   * Adlertag
   * The Hardest Day
   * Battle of Britain Day
   * Battle of Graveney Marsh
* Aerial incidents in Switzerland in World War II (1940–1945)
* The Blitz: September 1940 – May 1941
* Operation Cerberus: February 1942
* Operation Donnerkeil: February 1942
* St. Nazaire Raid: March 1942
* Dieppe Raid: August 1942
* Battle of Berlin (air): November 1943 – March 1944
* Western Allied invasion of France: June 1944–March 1945
   * Operation Overlord: June–August 1944
       * Operation Tonga
       * Normandy landings
       * Battle for Caen
           * Operation Perch
               * Battle of Villers-Bocage
           * Operation Epsom
           * Operation Windsor
           * Operation Charnwood
           * Operation Jupiter
           * Second Battle of the Odon
           * Operation Goodwood
           * Operation Atlantic
           * Battle of Verrières Ridge
           * Operation Spring
       * Battle of Cherbourg
           * Battle of Carentan
               * Battle of Bloody Gulch
       * Battle of Saint-Lô
       * Operation Cobra
       * Operation Lüttich
       * Battle for Brest
       * Operation Totalize
       * Falaise Pocket
           * Operation Tractable
               * Battle of Hill 262
           * Battle of Chambois
       * Liberation of Paris
       * French Resistance
   * Operation Valkyrie: July 1944
   * Operation Dragoon: August–September 1944
       * Operation Romeo
       * Battle of Port Cros
       * Battle of La Ciotat
   * Allied advance from Paris to the Rhine: August 1944 – March 1945
   * Clearing the Channel Coast: September–November 1944
       * Operation Astonia
       * Siege of Dunkirk (1944)
       * Operation Wellhit
       * Operation Undergo
       * Battle of the Scheldt
   * Lorraine Campaign: September–December 1944
       * Battle of Nancy
       * Battle of Metz
       * Battle of Arracourt
* Operation Market Garden: September 1944
   * Battle of Arnhem
   * Battle of Nijmegen
* Battle of Moerbrugge: September 1944
* Battle of Aachen: September–October 1944
   * Battle of Crucifix Hill
* Battle of Overloon: September–October 1944
* Battle of Hürtgen Forest: September–December 1944
   * Operation Queen
* Operation Clipper: November 1944
* Battle of Vianden: November 1944
* Battle of Kesternich: December 1944 – February 1945
* Battle of the Bulge: December 1944 – January 1945
   * Battle of Elsenborn Ridge
       * Losheim Gap
       * Battle of Lanzerath Ridge
   * Battle of Clervaux
   * Battle of St. Vith
   * Siege of Bastogne
   * Operation Bodenplatte
* Operation Nordwind: January 1945
* Colmar Pocket
* Operation Blackcock: January 1945
* Operation Veritable: February 1945
* Operation Grenade: February 1945
* Operation Lumberjack
   * Battle of Remagen
* Western Allied invasion of Germany: March–May 1945
   * Operation Undertone
   * Operation Plunder
       * Operation Varsity
   * Ruhr Pocket
   * Battle of Kassel
   * Battle of Heilbronn
   * Operation Amherst
   * Battle of Nuremberg
   * Battle of Hamburg
   * Battle of Castle Itter
* Liberation of Arnhem
* Battle of Groningen
* Battle of Otterlo
Atlantic Ocean


Atlantic Ocean
* Battle of the Atlantic: 1939–1945
   * Battle of the River Plate
   * Altmark Incident
   * Convoy SC 7
   * Convoy HX 84
   * Operation Berlin
   * Action of 4 April 1941
   * Action of 9 May 1941
   * Battle of the Denmark Strait
   * Battle of the Bismarck
   * Operation Drumbeat
   * Battle of Torpedo Alley
   * Action of 27 March 1942
   * Battle of the St. Lawrence
   * Action of 6 June 1942
   * Convoy PQ 17
   * Naval Battle of Casablanca
   * Battle of the Barents Sea
   * Battle of Sept-Îles
   * Battle of the North Cape
   * Operation Stonewall
       * Battle of the Bay of Biscay
   * Operation Teardrop
   * Battle of Ushant
   * Battle of Pierres Noires
   * Action of 9 February 1945
   * Battle of Point Judith
Eastern Front
Main article: Eastern Front (World War II)
* German Invasion of Poland: September–October 1939
   * Battle of Westerplatte
   * Battle of Mokra
   * Battle of Mlawa
   * Battle of Tuchola Forest
   * Battle of Jordanów
   * Battle of Borowa Góra
   * Battle of Grudziądz
   * Battle of Wizna
   * Battle of Radom
   * Battle of Piotrków Trybunalski
   * Battle of Hel
   * Battle of the Bzura
   * Siege of Warsaw
   * Battle of Lwów
   * Battle of Tomaszów Lubelski
   * Battle of Krasnobród
   * Battle of Kock
* Soviet invasion of Poland: September–October 1939
   * Battle of Wilno
   * Battle of Grodno
   * Battle of Husynne
   * Battle of Wladypol
   * Battle of Szack
   * Battle of Wytyczno
* Soviet invasion of Finland: November 1939 – March 1940
   * Battle of Suomussalmi
   * Battle of Summa
   * Battle of Raate Road
   * Battle of Kollaa
   * Battle of Petsamo
* Axis invasion of the Soviet Union (Operation Barbarossa): June–December 1941
   * Defense of Brest Fortress: June 1941
   * Battle of Białystok-Minsk: June 1941
   * Operation Rentier
   * Baltic Operation
   * Battle of Raseiniai
   * Battle of Brody (1941): June 1941
   * Continuation War
   * Operation Silver Fox
   * Operation Platinum Fox
   * Operation Arctic Fox: July–November 1941
   * Operation EF: July 1941
   * Battle of Smolensk (1941)
   * Battle of Uman
   * Pripyat swamps (punitive operation)
   * Siege of Odessa (1941)
   * Battle of Kiev (1941)
   * Bombing of Tallinn in World War II
   * Evacuation of Tallinn (1941)
   * Yelnya Offensive
   * Battle of the Sea of Azov
   * Siege of Leningrad (1941–1944)
       * Nevsky Pyatachok
       * Operation Nordlicht (1942)
       * Sinyavino Offensive (1942)
       * Operation Iskra
   * Battle of Bryansk (1941): October 1941
   * Battle of the Crimea (1941)
   * First Battle of Kharkov
   * Battle at Borodino Field: October 1941 – January 1942
   * Siege of Sevastopol (1941–1942)
       * Battle of the Kerch Peninsula
   * Battle of Rostov
   * Battle of Moscow[1]
* Operation Uzice: September–November 1941
* Soviet Winter counter-offensive: December 1941 – May 1942
   * Battles of Rzhev
       * Operation Büffel
   * Toropets-Kholm Operation
   * Demyansk Pocket
   * Second Battle of Kharkov
* Operation Kremlin
* Axis Summer offensive: June–November 1942
   * Operation Braunschweig: July–November 1942
   * Battle of Voronezh (1942)
   * Battle of the Caucasus
       * Malaya Zemlya
   * Battle of Stalingrad[2]
* Operation Uranus: November 1942
* Operation Mars: November–December 1942
* Operation Little Saturn: December 1942 – February 1943
   * Tatsinskaya Raid
* Operation Winter Storm: December 1942
* Battle for Velikiye Luki (1943)
* Operation Polyarnaya Zvezda
   * Battle of Krasny Bor
* Ostrogozhsk-Rossosh Operation
* Battle of Voronezh (1943)
* Third Battle of Kharkov
* Warsaw Ghetto Uprising
* Operation Citadel:[3] July–August 1943
   * Battle of Kursk
       * Battle of Prokhorovka
       * Operation Kutuzov
* Battle of Smolensk (1943)
   * Battle of Lenino
* Fourth Battle of Kharkov
   * Battle of Belgorod
* Białystok Ghetto Uprising: August 1943
* Battle of the Dnieper: August–December 1943
   * Battle of Kiev (1943)
* Operation Concert: September 1943
* Dnieper–Carpathian Offensive: December 1943 – April 1944
   * Zhitomir–Berdichev Offensive
   * Korsun Pocket
   * Uman-Botoshany Offensive
   * Kamenets-Podolsky pocket
* Leningrad–Novgorod Offensive
* Korsun-Cherkassy Pocket
* Battle of Narva (1944): February–August 1944
   * Krasnoye Selo–Ropsha Offensive
   * Kingisepp–Gdov Offensive
   * Battle for Narva Bridgehead
       * Battle of Auvere
   * Narva Offensive (15–28 February 1944)
   * Narva Offensive (1–4 March 1944)
   * Narva Offensive (July 1944)
       * Battle of Tannenberg Line
* Operation Margarethe
* Crimean Offensive (1944)
   * Kerch-Eltigen Operation
* Shyaulyay Offensive
* Battle of Someri
* Vyborg–Petrozavodsk Offensive
* Operation Bagration: June–August 1944
   * Vitebsk–Orsha Offensive
   * Mogilev Offensive
   * Bobruysk Offensive: June 1944
   * Minsk Offensive
   * Polotsk Offensive
   * Šiauliai Offensive
   * Vilnius Offensive
   * Belostock Offensive: July 1944
   * Lublin–Brest Offensive
   * Kaunas Offensive
   * Osovets Offensive
* Battle of Tali-Ihantala
* Battle of the Bay of Viipuri: June–July 1944
* Lvov–Sandomierz Offensive
* Battle of Radzymin (1944)
* Warsaw Uprising
* Battle of Studzianki
* Operation Doppelkopf
* Romanian campaign: August–December 1944
   * Jassy–Kishinev Offensive
       * First Jassy–Kishinev Offensive
           * Battle of Târgul Frumos
               * First Battle of Târgu Frumos
               * Second Battle of Târgu Frumos
* Slovak National Uprising
* Battle of the Dukla Pass
* Baltic Offensive
   * Riga Offensive (1944)
   * Tallinn Offensive
       * Battle of Porkuni
   * Moonsund Landing Operation
   * Battle of Memel
* Belgrade Offensive
* Operation Nordlicht (1944–1945)
* Battle of Debrecen
* Operation Panzerfaust
* Courland Pocket
* Gumbinnen Operation
* Budapest Offensive: October 1944 – February 1945
   * Siege of Budapest: December 1944 – February 1945
       * Operation Konrad
* Vistula–Oder Offensive: January–February 1945
   * Battle of Poznań (1945)
* East Prussian Offensive
   * Heiligenbeil Pocket
   * Battle of Königsberg
* Defense of Schwedt Bridgehead
* Silesian Offensives
   * Lower Silesian Offensive
       * Siege of Breslau: February–May 1945
   * Upper Silesian Offensive
* Operation Solstice
* East Pomeranian Offensive
   * Battle of Kolberg
* Operation Spring Awakening
   * Battle of the Transdanubian Hills
* Nagykanizsa–Körmend Offensive
* Vienna Offensive
* Samland Offensive
* Battle of Berlin: April–May 1945
   * Battle of the Oder-Neisse
       * Battle of the Seelow Heights
   * Battle of Halbe
* Battle of Bautzen (1945): April 1945
* Prague Offensive
* Battle of Odzak: 19 April-25 May 1945
Indian Ocean


Indian Ocean theater of World War II
* Attack on Convoy BN 7: October 1940
* Action of 27 February 1941
* Action of 8 May 1941
* Japanese occupation of the Andaman Islands: 1942–1945
* Battle of Christmas Island: March–April 1942
* Indian Ocean raid: March–April 1942
* Easter Sunday Raid: April 1942
* Battle of Madagascar: May–November 1942
* Cocos Island Mutiny: May 1942
* Battle of La Réunion: November 1942
* Indian Ocean raid (1944): March 1944
Pacific Front
Main article: Pacific War
* Battles of Khalkhin Gol May–September 1939
* Japanese attacks on the U.S. or U.S. unincorporated territories
   * Attack on Pearl Harbor: 7 December 1941
       * Niihau Incident
   * Battle of Guam (1941): December 1941
   * Battle of Wake Island: December 1941
   * Japanese occupation of Philippines: December 1941 – May 1942
       * Japanese invasion of Batan Island, December 1941
       * Japanese invasion of Vigan, December 1941
       * Japanese invasion of Aparri, December 1941
       * Japanese invasion of Legazpi, December 1941
       * Japanese invasion of Davao, December 1941
       * Japanese invasion of Lingayen Gulf, December 1941
       * Japanese invasion of Lamon Bay, December 1941
       * Battle of Bataan (1942), January–April 1942
       * Battle of Corregidor: May 1942
   * Battle of Dutch Harbor: June 1942
   * Battle of Midway: June 1942
   * Japanese occupation of Kiska: June 1942
   * Japanese occupation of Attu: June 1942
* Japanese occupation of Hong Kong: December 1941
* Japanese occupation of Dutch East Indies: December 1941 – March 1942
   * Battle of Borneo (1941–42)
       * Battle of Tarakan (1942)
       * Battle of Balikpapan (1942)
   * Battle of Manado (1942)
   * Battle of Ambon (1942)
   * Battle of Makassar Strait (1942)
   * Battle of Palembang (1942)
   * Battle of Badung Strait (1942)
   * Battle of Timor (1942–43)
   * Battle of the Java Sea (1942)
   * Battle of Sunda Strait (1942)
   * Battle of Java (1942)
   * Second Battle of the Java Sea (1942)
* Japanese Invasion of Rabaul, January–February 1942
* Japanese attacks on Australia: February–June 1942
   * Battle of Darwin: February 1942
   * Attack on Broome: March 1942
   * Attack on Sydney Harbour: May–June 1942
   * Raid on Darwin: May 1943
* Japanese Invasion of Salamaua-Lae, March 1942
* Japanese Invasion of Tulagi, May 1942
* Battle of the Coral Sea, May 1942
* Japanese Invasion of Buna-Gona, July 1942
* Kokoda Track campaign, July–November 1942
   * Battle of Kokoda
   * Battle of Isurava, August 1942
   * First Battle of Eora Creek – Templeton's Crossing, August–September 1942
   * Battle of Mission Ridge – Brigade Hill,
   * Battle of Ioribaiwa, September 1942
   * Second Battle of Eora Creek – Templeton's Crossing, October 1942
   * Battle of Oivi–Gorari, November 1942
* Battle of Milne Bay, August–September 1942
* Guadalcanal Campaign: August 1942 – February 1943
   * Battle of Tulagi and Gavutu–Tanambogo, August 1942
   * Battle of Savo Island, August 1942
   * Makin Island raid, August 1942
   * Battle of the Tenaru: August 1942
   * Battle of the Eastern Solomons, August 1942
   * Battle of Edson's Ridge: September 1942
   * Actions along the Matanikau: September–October 1942
   * Battle of Cape Esperance, October 1942
   * Battle for Henderson Field: October 1942
   * Battle of the Santa Cruz Islands, October 1942
   * Matanikau Offensive: November 1942
   * Koli Point action: November 1942
   * Carlson's Patrol: November–December 1942
   * Naval Battle of Guadalcanal. November 1942
   * Battle of Tassafaronga, November 1942
   * Battle of Mount Austen, the Galloping Horse, and the Sea Horse: December 1942
   * Battle of Rennell Island: January 1943
* New Guinea campaign: October 1942 – August 1945
   * Battle of Goodenough Island, October 1942
   * Battle of Buna–Gona, November 1942 – January 1943
   * Battle of Wau, January 1943
   * Battle of the Bismarck Sea, March 1943
   * Salamaua–Lae campaign, April–September 1943
       * Battle of Mubo, April–July 1943
       * Battle of Bobdubi, April–August 1943
       * Battle of Lababia Ridge, June 1943
       * Landing at Nassau Bay, June–July 1943
       * Battle of Roosevelt Ridge, July–August 1943
       * Battle of Mount Tambu, July–August 1943
       * Landing at Lae, September 1943
       * Landing at Nadzab, September
   * Finisterre Range campaign, September 1943 – April 1944
   * Huon Peninsula campaign, September 1943 – March 1944
       * Landing at Scarlet Beach, September–October 1943
       * Battle of Finschhafen, September–October 1943
       * Battle of Sattelberg, November 1943
       * Battle of Wareo, November–December 1943
       * Landing on Long Island, December 1943
       * Battle of Sio, December 1943 – March 1944
       * Landing at Saidor, January–February 1944
       * Battle of Madang, February–April 1944
   * Bougainville Campaign, November 1943 – August 1945
   * New Britain campaign, December 1943 – August 1945
   * Battle of Cape Gloucester: December 1943 – April 1944
   * Admiralty Islands campaign, February–May 1944
   * Western New Guinea campaign, April 1944 – August 1945
   * Aitape–Wewak campaign, November 1944 – August 1945
* Aleutian Islands Campaign, March–August 1943
   * Battle of the Komandorski Islands: March 1943
   * Battle of Attu: May 1943
* Operation Vengeance: April 1943
* Solomon Islands Campaign, June–November 1943
   * New Georgia Campaign, June–August 1943
   * Battle of Kula Gulf: July 1943
   * Battle of Kolombangara: July 1943
   * Battle of Vella Gulf: August 1943
   * Land Battle of Vella Lavella: August–October 1943
   * Naval Battle of Vella Lavella: October 1943
   * Battle of Empress Augusta Bay: November 1943
   * Battle of Cape St. George: November 1943
* Gilbert and Marshall Islands campaign, November 1943 – February 1944
   * Battle of Tarawa, November 1943
   * Battle of Kwajalein, February 1944
   * Battle of Eniwetok, February 1944
* Mariana and Palau Islands campaign, June–November 1944
   * Battle of Saipan, June 1944
   * Battle of the Philippine Sea, June 1944
   * Battle of Guam (1944), July–August 1944
   * Battle of Tinian, July–August 1944
   * Battle of Peleliu, September–November 1944
   * Battle of Angaur, September–October 1944
* Battle of Noemfoor: July–August 1944
* Battle of Morotai: September–October 1944
* Philippines Campaign (1944–45): October 1944 – September 1945
   * Battle of Leyte: October–December 1944
   * Battle of Leyte Gulf: October 1944
       * Battle off Samar: 25 October 1944
       * Battle of Ormoc Bay: November–December 1944
   * Battle of Luzon: January–August 1945
   * Battle of Manila (1945): February–March 1945
   * Battle of Bacsil Ridge: March 1945
   * Battle of Mindanao: March–Aug 1945
   * Battle for Cebu City: March–Apr 1945
* Battle of Iwo Jima: February–March 1945
* Battle of Okinawa: April–June 1945
* Battle of Balikpapan (1945): July 1945
* Atomic bombings of Hiroshima and Nagasaki: August 1945
* Soviet invasion of Manchuria August 1945
   * Battle of Mutanchiang August 1945
   * Seishin Operation
   * Soviet invasion of South Sakhalin
   * Invasion of the Kuril Islands
* Kyūjō incident
China Front


Chinese theater of World War II
* 1931–1945 Sino-Japanese War (September 1931 – September 1945)
   * Japanese invasion of Manchuria September 1931 – February 1932
       * Mukden Incident September 1931
       * Jiangqiao campaign November 1931
           * Resistance at Nenjiang Bridge November 1931
       * Jinzhou Operation December 1931 – January 1932
       * Defense of Harbin January 1931 – February 1932
   * January 28 incident January–March 1932
   * Pacification of Manchukuo November 1931 – February 1942
   * Inner Mongolian campaign April 1933 – December 1936
       * Defense of the Great Wall February–March 1933
           * Battle of Rehe February–March 1933
       * Suiyuan campaign October–November 1936
   * Marco Polo Bridge Incident July 1937
   * Battle of Beiping–Tianjin July–August 1937
   * Battle of Shanghai August 1937
       * Defense of Sihang Warehouse October 26, 1937
   * Beiping–Hankou Railway Operation August 1937
   * Tianjin–Pukou Railway Operation August 1937
   * Battle of Taiyuan September 1937
       * Battle of Pingxingguan September 1937
       * Battle of Xinkou September 1937
   * Battle of Nanjing December 1937
   * Battle of Xuzhou December 1937
   * Bombing of Chongqing February 1938 – August 1943
   * Taihoku Air Strike February 1938
   * Battle of Taierzhuang March 1938
   * Northern and Eastern Honan 1938 January 1938
       * Battle of Lanfeng May 1938
   * Amoy Operation May 1938
   * Battle of Wuhan June 1938
       * Battle of Wanjialing August 1938
   * Canton Operation October 1938
   * Hainan Island Operation February 1939
   * Battle of Nanchang March 1939
   * Battle of Suixian-Zaoyang May 1939
   * Swatow Operation June 1939
   * First Battle of Changsha September–October 1939
   * Battle of South Guangxi November 1939
       * Battle of Kunlun Pass December 1939
   * 1939–1940 Winter Offensive November 1939
       * Battle of West Suiyuan January–February 1940
       * Battle of Wuyuan March 1940
   * Battle of Zaoyang-Yichang May 1940
   * Hundred Regiments Offensive August 1940
   * Central Hupei Operation November 1940
   * Battle of South Henan January 1941
   * New Fourth Army Incident January 1941
   * Western Hopei Operation March 1941
   * Battle of Shanggao March 1941
   * Battle of South Shanxi May 1941
   * Second Battle of Changsha September–October 1941
* Third Battle of Changsha December 1941 – January 1942
   * Battle of Zhejiang-Jiangxi May–September 1942
   * Battle of West Hubei May–June 1943
   * Linnan Campaign August 1943
   * Battle of Changde November–December 1943
   * Operation Ichi-Go April–December 1944
       * Battle of Central Henan April 1944
       * Fourth Battle of Changsha May–June 1944
       * Defense of Hengyang June–August 1944
       * Battle of Guilin–Liuzhou August–November 1944
   * Battle of Mount Song June–September 1944
   * Battle of West Henan–North Hubei March 1945  — May 1945
   * Battle of West Hunan April 1945  – June 1945
   * Second Guangxi Campaign April–August 1945
   * Soviet invasion of Manchuria August 1945
       * Battle of Mutanchiang August 1945
Southeast Asia Front

South-East Asian theatre of World War II
* Japanese invasion of French Indochina: September 1940
   * Battle of Lạng Sơn: September 1940
* Thailand invasion of Laos, Cambodia and French Indochina : October 1940 – May 1941
   * Battle of Ko Chang: January 1941
* Japanese invasion of Thailand: December 1941
   * Battle of Prachuap Khiri Khan: December 1941
* Japanese-Thai occupation of Malaya: December 1941 – January 1942
   * Battle of Kota Bharu
   * Battle for the ledge
   * Naval Battle of Malaya
   * Battle of Jitra
   * Battle of Kampar
   * Battle of Slim River
   * Battle of Muar
       * Battle of Gemas
   * Battle off Endau
* Bombing of Bangkok: 1942–1945
* Japanese occupation of Singapore: February 1942
   * Bombing of Singapore (1941)
   * Battle of Sarimbun Beach
   * Battle of Kranji
   * Battle of Bukit Timah
   * Battle of Pasir Panjang
* Burma Campaign
   * Japanese-Thai occupation of Burma: January–May 1942
       * Bombing of Rangoon (1941–1942)
       * Battle of Bilin River
       * Battle of Sittang Bridge
       * Battle of Pegu
       * Taukkyan Roadblock
       * Battle of Yunnan-Burma Road
           * Battle of Tachiao
           * Battle of Oktwin
           * Battle of Toungoo
           * Battle of Yenangyaung
   * Burma Campaign 1942–43
       * Arakan Campaign 1942–1943
       * Chindits Raid
   * Burma Campaign 1944
       * Battle of the Admin Box
       * Siege of Myitkyina
   * Japanese invasion of India: March–June 1944
       * Battle of Imphal
       * Battle of Sangshak
       * Battle of Kohima
   * Burma Campaign 1944–1945
       * Battle of Northern Burma and Western Yunnan
       * Battle of Meiktila and Mandalay
       * Battle of Pokoku and Irrawaddy River operations
       * Battle of Hill 170
       * Battle of Ramree Island
       * Operation Dracula
       * Battle of Elephant Point
* Allies bombing of South-East Asia: 1944–1945
   * Operation Matterhorn: 1944
* Battle of the Malacca Strait: May 1945
* Operation Tiderace: September 1945