List of World War II battles

USS Lexington explodes during the Battle of the Coral Sea.
A formation of Spitfires shortly before World War II.

This is a list of World War II battles encompassing land, naval, and air engagements as well as campaigns, operations, defensive lines and sieges. Campaigns generally refer to broader strategic operations conducted over a large bit of territory and over a long period. Battles generally refer to short periods of intense combat localised to a specific area and over a specific period. However, use of the terms in naming such events is not consistent. For example, the Battle of the Atlantic was more or less an entire theatre of war, and the so-called battle lasted for the duration of the entire war. Another misnomer is the Battle of Britain, which by all rights should be considered a campaign, not a mere battle.

Battle Campaign Theatre Start End Allies Axis Victory
Westerplatte Invasion of Poland Eastern Front 1939-09-01 1939-09-07  Poland  Germany
 Danzig 		Axis
Chojnice Invasion of Poland Eastern Front 1939-09-01  Poland  Germany Axis
Danzig Invasion of Poland Eastern Front 1939-09-01  Poland  Danzig Axis
Danzig Bay Invasion of Poland Eastern Front 1939-09-01  Poland  Germany Axis
Krojanty Invasion of Poland Eastern Front 1939-09-01  Poland  Germany Axis
Lasy Królewskie Invasion of Poland Eastern Front 1939-09-01  Poland  Germany Allies
Mokra Invasion of Poland Eastern Front 1939-09-01  Poland  Germany Allies
Mikołów Invasion of Poland Eastern Front 1939-09-01 1939-09-02  Poland  Germany Axis
Pszczyna Invasion of Poland Eastern Front 1939-09-01 1939-09-02  Poland  Germany Axis
Częstochowa Invasion of Poland Eastern Front 1939-09-01 1939-09-03  Poland  Germany Axis
Mława Invasion of Poland Eastern Front 1939-09-01 1939-09-03  Poland  Germany Axis
Jordanów Invasion of Poland Eastern Front 1939-09-01 1939-09-03  Poland  Germany Axis
Węgierska Górka Invasion of Poland Eastern Front 1939-09-01 1939-09-03  Poland  Germany Axis
Grudziądz Invasion of Poland Eastern Front 1939-09-01 1939-09-04  Poland  Germany Axis
Tuchola Forest Invasion of Poland Eastern Front 1939-09-01 1939-09-05  Poland  Germany Axis
Slovak invasion of Poland Invasion of Poland Eastern Front 1939-09-01 1939-09-16  Poland  Slovakia Axis
Hel Invasion of Poland Eastern Front 1939-09-01 1939-10-02  Poland  Germany Axis
Fraustadt Invasion of Poland Eastern Front 1939-09-02  Poland  Germany Allies
Borowa Góra Invasion of Poland Eastern Front 1939-09-02 1939-09-06  Poland  Germany Axis
Bukowiec Invasion of Poland Eastern Front 1939-09-03  Poland  Germany Axis
Katowice Invasion of Poland Eastern Front 1939-09-03 1939-09-04  Poland  Germany Axis
Piotrków Trybunalski Invasion of Poland Eastern Front 1939-09-04 1939-09-06  Poland  Germany Axis
Różan Invasion of Poland Eastern Front 1939-09-04 1939-09-06  Poland  Germany Axis
Tomaszów Mazowiecki Invasion of Poland Eastern Front 1939-09-06  Poland  Germany Axis
Pułtusk Invasion of Poland Eastern Front 1939-09-06 1939-09-07  Poland  Germany Axis
Łódź Invasion of Poland Eastern Front 1939-09-06 1939-09-08  Poland  Germany Axis
Barak Invasion of Poland Eastern Front 1939-09-07 1939-09-08  Poland  Germany Allies
Łomża Invasion of Poland Eastern Front 1939-09-07 1939-09-10  Poland  Germany Axis
Wizna Invasion of Poland Eastern Front 1939-09-07 1939-09-10  Poland  Germany Axis
Saar Offensive Phoney War Western Front 1939-09-07 1939-10-16  France  Germany Axis
Wola Cyrusowa Invasion of Poland Eastern Front 1939-09-08  Poland  Germany Allies
Radom Invasion of Poland Eastern Front 1939-09-08 1939-09-09  Poland  Germany Axis
Gdynia Invasion of Poland Eastern Front 1939-09-08 1939-09-14  Poland  Germany Axis
Warsaw Invasion of Poland Eastern Front 1939-09-08 1939-09-28  Poland  Germany Axis
Bzura Invasion of Poland Eastern Front 1939-09-09 1939-09-19  Poland  Germany Axis
Kampinos Forest Invasion of Poland Eastern Front 1939-09-09 1939-09-20  Poland  Germany Axis
Jarosław Invasion of Poland Eastern Front 1939-09-10 1939-09-11  Poland  Germany Axis
Kępa Oksywska Invasion of Poland Eastern Front 1939-09-10 1939-09-19  Poland  Germany Axis
Kałuszyn Invasion of Poland Eastern Front 1939-09-11 1939-09-12  Poland  Germany Allies
Przemyśl Invasion of Poland Eastern Front 1939-09-11 1939-09-14  Poland  Germany Axis
Lwów Invasion of Poland Eastern Front 1939-09-12 1939-09-22  Poland  Germany
 Soviet Union 		Axis
Modlin Invasion of Poland Eastern Front 1939-09-13 1939-09-29  Poland  Germany Axis
Jaworów Invasion of Poland Eastern Front 1939-09-14 1939-09-16  Poland  Germany Allies
Brześć Litewski Invasion of Poland Eastern Front 1939-09-14 1939-09-17  Poland  Germany Axis
Kobryń Invasion of Poland Eastern Front 1939-09-14 1939-09-18  Poland  Germany Inconclusive
Tomaszów Lubelski Invasion of Poland Eastern Front 1939-09-17 1939-09-26  Poland  Germany Axis
Wilno Soviet invasion of Poland Eastern Front 1939-09-18 1939-09-19  Poland  Soviet Union Soviet
Wólka Węglowa Invasion of Poland Eastern Front 1939-09-19  Poland  Germany Allies
Krasnystaw Invasion of Poland Eastern Front 1939-09-19 1939-09-20  Poland  Germany Axis
Grodno Soviet invasion of Poland Eastern Front 1939-09-20 1939-09-22  Poland  Soviet Union Soviet
Cześniki Invasion of Poland Eastern Front 1939-09-21 1939-09-22  Poland  Germany Allies
Łomianki Invasion of Poland Eastern Front 1939-09-22  Poland  Soviet Union Axis
Krasnobród Invasion of Poland Eastern Front 1939-09-23  Poland  Germany Allies
Husynne Soviet invasion of Poland Eastern Front 1939-09-24  Poland  Soviet Union Soviet
Władypol Soviet invasion of Poland Eastern Front 1939-09-27  Poland  Soviet Union Soviet
Szack Soviet invasion of Poland Eastern Front 1939-09-28  Poland  Soviet Union Allies
Wytyczno Soviet invasion of Poland Eastern Front 1939-10-01  Poland  Soviet Union Soviet
Kock Invasion of Poland Eastern Front 1939-10-02 1939-10-05  Poland  Germany Axis
Suomussalmi Winter War Eastern Front 1939-11-30 1940-01-08  Finland  Soviet Union Finnish
Petsamo Winter War Eastern Front 1939-11-30 1940-03-13  Finland  Soviet Union Soviet
Salla Winter War Eastern Front 1939-11-30 1940-03-13  Finland  Soviet Union Finnish
Ilomantsi (1939) Winter War Eastern Front 1939-12-10 1939-12-16  Finland  Soviet Union Stalemate
River Plate Battle of the Atlantic 1939-12-13  United Kingdom
 New Zealand 		 Germany Allies
Taipale Winter War Eastern Front 1939-12-06 1939-12-27  Finland  Soviet Union Finnish
Kollaa Winter War Eastern Front 1939-12-07 1940-03-13  Finland  Soviet Union Finnish
Varolampi Pond Winter War Eastern Front 1939-12-10 1939-12-11  Finland  Soviet Union Finnish
Tolvajärvi Winter War Eastern Front 1939-12-12  Finland  Soviet Union Finnish
Summa (first) Winter War Eastern Front 1939-12-16 1939-12-22  Finland  Soviet Union Finnish
Kelja Winter War Eastern Front 1939-12-25 1939-12-27  Finland  Soviet Union Finnish
Raate Road Winter War Eastern Front 1940-01-01 1940-01-07  Finland  Soviet Union Finnish
Kuhmo Winter War Eastern Front 1940-01-28 1940-03-13  Finland  Soviet Union Stalemate
Summa (second) Winter War Eastern Front 1940-02-01 1940-02-15  Finland  Soviet Union Soviet
Altmark Phoney War Western Front 1940-02-16  United Kingdom  Germany Allies
Honkaniemi Winter War Eastern Front 1940-02-25 1940-02-27  Finland  Soviet Union Soviet
Vyborg Bay (1940) Winter War Eastern Front 1940-03-02 1940-03-13  Finland  Soviet Union Ceasefire
Oslofjord Norwegian campaign Western Front 1940-04-08  Norway  Germany Axis
German invasion of Denmark Operation Weserübung Western Front 1940-04-09  Denmark  Germany Axis
Drøbak Sound Norwegian campaign Western Front 1940-04-09  Norway  Germany Allies
Fornebu Norwegian campaign Western Front 1940-04-09  Norway  Germany Axis
Horten Harbour Norwegian campaign Western Front 1940-04-09  Norway  Germany Axis
Kristiansand Norwegian campaign Western Front 1940-04-09  Norway  Germany Axis
Lofoten Norwegian campaign Western Front 1940-04-09  United Kingdom  Germany Allies
Narvik Norwegian campaign Western Front 1940-04-09 1940-06-08  Norway
 France
 United Kingdom
Poland 		 Germany Allies
Narvik (naval Norwegian) Norwegian campaign Western Front 1940-04-09  Norway  Germany Axis
Midtskogen Norwegian campaign Western Front 1940-04-10  Norway  Germany Allies
Narvik (first naval) Norwegian campaign Western Front 1940-04-10  United Kingdom  Germany Allies
Narvik (second naval) Norwegian campaign Western Front 1940-04-13  United Kingdom  Germany Allies
Dombås Norwegian campaign Western Front 1940-04-14 1940-04-19  Norway  Germany Allies
Hegra Fortress Norwegian campaign Western Front 1940-04-15 1940-05-05  Norway  Germany Axis
Namsos Norwegian campaign Western Front 1940-04 1940-05  United Kingdom
 France
 Norway 		 Germany Axis
Åndalsnes Norwegian campaign Western Front 1940-04-19 1940-05  United Kingdom
 Norway 		 Germany Axis
Gratangen Norwegian campaign Western Front 1940-04-23 1940-04-25  Norway  Germany Axis
Høljarast Bridge Norwegian campaign Western Front 1940-04-24  Norway  Germany Axis
Kvam Norwegian campaign Western Front 1940-04-25 1940-04-26  United Kingdom
 Norway 		 Germany Axis
Vinjesvingen Norwegian campaign Western Front 1940-05-03 1940-05-05  Norway  Germany Axis
Nordland Norwegian campaign Western Front 1940-05-08 1940-06-01  United Kingdom
 Norway 		 Germany Axis
The Hague German invasion of the Netherlands Western Front 1940-05-10  Netherlands  Germany Allies
Invasion of Iceland Allied occupation of Iceland Western Front 1940-05-10  United Kingdom  Iceland Allies
German invasion of Luxembourg Western Front 1940-05-10  Luxembourg  Germany Axis
Maastricht German invasion of the Netherlands Western Front 1940-05-10  Netherlands  Germany Axis
Fort Ében-Émael German invasion of Belgium Western Front 1940-05-10 1940-05-11  Belgium  Germany Axis
Mill German invasion of the Netherlands Western Front 1940-05-10 1940-05-11  Netherlands  Germany Axis
Rotterdam German invasion of the Netherlands Western Front 1940-05-10 1940-05-14  Netherlands  Germany Axis
Zeeland German invasion of the Netherlands Western Front 1940-05-10 1940-05-18  Netherlands
 France
 United Kingdom 		 Germany Axis
Grebbeberg German invasion of the Netherlands Western Front 1940-05-11 1940-05-13  Netherlands  Germany Axis
Afsluitdijk German invasion of the Netherlands Western Front 1940-05-12 1940-05-14  Netherlands  Germany Axis
Hannut German invasion of Belgium Western Front 1940-05-12 1940-05-14  Belgium  Germany Axis
Sedan Battle of France Western Front 1940-05-12 1940-05-17  France
 United Kingdom 		 Germany Axis
Gembloux German invasion of Belgium Western Front 1940-05-14 1940-05-15  France  Germany Allies
Montcornet Battle of France Western Front 1940-05-17  France  Germany Allies
Arras Battle of France Western Front 1940-05-21  France
 United Kingdom 		 Germany Axis
Boulogne Battle of France Western Front 1940-05-22 1940-05-25  France
 United Kingdom
 Belgium 		 Germany Axis
Calais Battle of France Western Front 1940-05-22 1940-05-26  France
 United Kingdom
 Belgium 		 Germany Axis
Lys German invasion of Belgium Western Front 1940-05-24 1940-05-28  Belgium
 France
 United Kingdom 		 Germany Axis
Ypres–Comines Canal German invasion of Belgium Western Front 1940-05-26 1940-05-28  United Kingdom
 Belgium 		 Germany Allies
Dunkirk Battle of France Western Front 1940-05-26 1940-06-04  France
 United Kingdom
 Belgium
 Canada
 Netherlands 		 Germany Axis
Abbeville Battle of France Western Front 1940-05-27 1940-06-04  France
 United Kingdom 		 Germany Axis
Lille Battle of France Western Front 1940-05-28 1940-05-31  France  Germany Axis
Fall Rot Battle of France Western Front 1940-06-05 1940-06-25  France
 United Kingdom 		 Germany Axis
Operation Juno Norwegian campaign Western Front 1940-06-08  United Kingdom  Germany Axis
Italian invasion of France Battle of France Western Front 1940-06-10 1940-06-25  France
 United Kingdom 		 Italy Axis
Siege of Malta Mediterranean Front 1940-06-11 1942-11-20  United Kingdom
 Canada
 South Africa
 Australia
 New Zealand
 Free France
Greece
Poland
Norway
 United States 		 Italy
 Germany 		Allies
Lagarde Battle of France Western Front 1940-06-17 1940-06-18  Poland  Germany Axis
Saumur Battle of France Western Front 1940-06-18 1940-06-20  France  Germany Axis
Espero Convoy Battle of the Mediterranean Mediterranean Front 1940-06-28  United Kingdom
 Australia 		 Italy Inconclusive
Soviet occupation of Bessarabia and Northern Bukovina 1940-06-28 1940-07-03 Romania  Soviet Union
 Germany 		Soviets
Mers-el-Kébir Battle of the Mediterranean Mediterranean Front 1940-07-03  United Kingdom  France Allies
Kassala East African campaign African Front 1940-07-04  United Kingdom  Italy Axis
Kanalkampf Battle of Britain Western Front 1940-07-04 1940-08-11  United Kingdom
 Netherlands
 Norway
 Canada
Poland Poland
 Belgium 		 Germany Inconclusive
Calabria Battle of the Mediterranean Mediterranean Front 1940-07-09  United Kingdom
 Australia 		 Italy Inconclusive
Cape Spada Battle of the Mediterranean Mediterranean Front 1940-07-19  United Kingdom
 Australia 		 Italy Allies
Tug Argan East African campaign African Front 1940-08-11 1940-08-15  United Kingdom  Italy Axis
Adlertag Battle of Britain Western Front 1940-08-13  United Kingdom  Germany Allies
The Hardest Day Battle of Britain Western Front 1940-08-18  United Kingdom  Germany Inconclusive
Battle of Britain Day Battle of Britain Western Front 1940-09-15  United Kingdom  Germany Allies
Graveney Marsh Battle of Britain Western Front 1940-09-27  United Kingdom  Germany Allies
Italian invasion of British Somaliland East African campaign African Front 1940-08-03 1940-08-19  United Kingdom
 Australia
 South Africa 		 Italy Axis
The Blitz Battle of Britain Western Front 1940-09-07 1941-05-11  United Kingdom  Germany
 Italy 		Inconclusive
Italian invasion of Egypt Western Desert campaign African Front 1940-09-09 1940-09-16  United Kingdom
 Free France 		 Italy Axis
Lạng Sơn Japanese invasion of French Indochina South-East Asian Front 1940-09-22 1940-09-26  Vichy France  Japan Axis
Dakar West African campaign African Front 1940-09-23 1940-09-25  United Kingdom
 Free France
 Australia 		 Vichy France Vichy
Franco-Thai War South-East Asian Front 1940-10 1941-01-28  Vichy France  Thailand Thai
Cape Passero Battle of the Mediterranean Mediterranean Front 1940-10-12  United Kingdom  Italy Allies
Convoy BN 7 East African campaign African Front 1940-10-20 1940-10-21  United Kingdom
 New Zealand
 Australia 		 Italy Allies
Gabon West African campaign African Front 1940-10-27 1940-11-12  Free France
 United Kingdom 		 Vichy France Allies
Pindus Greco–Italian War Mediterranean Front 1940-10-28 1940-11-13  Greece  Italy Allies
Elaia–Kalamas Greco–Italian War Mediterranean Front 1940-11-02 1940-11-08  Greece  Italy Allies
Taranto Battle of the Mediterranean Mediterranean Front 1940-11-11 1940-11-12  United Kingdom  Italy Allies
Morava–Ivan Greco–Italian War Mediterranean Front 1940-11-14 1940-11-23  Greece  Italy
Albania 		Allies
Korytsa Greco–Italian War Mediterranean Front 1940-11-16 1940-11-22  Greece  Italy Allies
Cape Spartivento Battle of the Mediterranean Mediterranean Front 1940-11-27  United Kingdom  Italy Inconclusive
Saranda Greco–Italian War Mediterranean Front 1940-12 1940-12  Greece  Italy Allies
Nibeiwa Western Desert campaign African Front 1940-12-09  United Kingdom  Italy Allies
Sidi Barrani Western Desert campaign African Front 1940-12-10 1940-12-11  United Kingdom
 Australia
 Free France 		 Italy Allies
Himara Greco–Italian War Mediterranean Front 1940-12-13 1940-12-22  Greece  Italy Allies
Giarabub Western Desert campaign African Front 1940-12-25 1941-03-21  United Kingdom
 Australia 		 Italy Allies
Bardia Western Desert campaign African Front 1941-01-03 1941-01-05  Australia
 United Kingdom
 Free France 		 Italy Allies
Klisura Pass Greco–Italian War Mediterranean Front 1941-01-06 1941-01-11  Greece  Italy Allies
Operation Excess Battle of the Mediterranean Mediterranean Front 1941-01-10 1941-01-11  United Kingdom
 Australia 		 Italy
 Germany 		Allies
Operation Berlin (Atlantic) Battle of the Atlantic 1941-01-22 1941-03-22  United Kingdom  Germany Axis
Mechili Western Desert campaign African Front 1941-01-24  United Kingdom  Italy Allies
Agordat East African campaign African Front 1941-01-26 1941-01-31  United Kingdom  Italy Allies
Trebeshina Greco–Italian War Mediterranean Front 1941-01-29 1941-02-17  Greece  Italy Allies
Kufra Western Desert campaign African Front 1941-01-31 1941-03-01  Free France
 United Kingdom 		 Italy Allies
Keren East African campaign African Front 1941-02-03 1941-03-27  United Kingdom
 Free France 		 Italy Allies
Beda Fomm Western Desert campaign African Front 1941-02-06 1941-02-07  United Kingdom
 Australia 		 Italy Allies
Operation Sonnenblume Western Desert campaign African Front 1941-02-06 1941-05-25  United Kingdom
 Australia 		 Germany
 Italy 		Axis
Action of 27 February 1941 Indian Ocean 1941-02-27  New Zealand  Italy Allies
Hill 731 Greco–Italian War Mediterranean Front 1941-03-09 1941-03-24  Greece  Italy Allies
Saïo East African campaign African Front 1941-03-25 1941-07-06 Belgium Belgium
 United Kingdom
 Ethiopian Empire
 South Africa 		 Italy Allies
Souda Bay Battle of the Mediterranean Mediterranean Front 1941-03-26  United Kingdom
 Norway 		 Italy Axis
Cape Matapan Battle of the Mediterranean Mediterranean Front 1941-03-27 1941-03-29  United Kingdom
 Australia 		 Italy Allies
4 April 1941 Battle of the Atlantic 1941-04-04  United Kingdom  Germany Axis
Operation Retribution (1941) Balkans campaign Mediterranean Front 1941-04-06 1941-04-08  Yugoslavia  Germany Axis
Metaxas Line Balkans campaign Mediterranean Front 1941-04-06 1941-04-09  Greece  Germany Axis
Invasion of Yugoslavia Balkans campaign Mediterranean Front 1941-04-06 1941-04-18  Yugoslavia  Germany
 Hungary
 Italy 		Axis
Tobruk Western Desert campaign African Front 1941-04-10 1941-11-27  Australia
 United Kingdom
 New Zealand
Poland Poland
Czechoslovakia Czechoslovakia 		 Germany
 Italy 		Allies
Vevi Balkans campaign Mediterranean Front 1941-04-11 1941-04-12  Australia
 Greece
 New Zealand
 United Kingdom 		 Germany Axis
Ptolemaida Balkans campaign Mediterranean Front 1941-04-13  United Kingdom
 Australia
 New Zealand 		 Germany Axis
Kleisoura Pass Balkans campaign Mediterranean Front 1941-04-13 1941-04-14  Greece  Germany Axis
Lake Kastoria Balkans campaign Mediterranean Front 1941-04-15  Greece  Germany Axis
Tarigo Convoy Battle of the Mediterranean Mediterranean Front 1941-04-16  United Kingdom  Italy Allies
Tempe Gorge Balkans campaign Mediterranean Front 1941-04-18  Australia
 New Zealand 		 Germany Allies
Bardia Western Desert campaign African Front 1941-04-19 1941-04-20  United Kingdom
 Australia 		 Germany
 Italy 		Allies
Athens Balkans campaign Mediterranean Front 1941-04-20  United Kingdom  Germany Axis
Thermopylae Balkans campaign Mediterranean Front 1941-04-24 1941-04-25  Australia
 New Zealand 		 Germany Axis
Anglo-Iraqi War Middle Eastern Front 1941-05-02 1941-05-31  United Kingdom
 Australia
 New Zealand
 Greece 		 Iraq
 Germany
 Italy
 Vichy France 		Allies
Amba Alagi East African campaign African Front 1941-05-04 1941-05-19  United Kingdom
 South Africa
 Ethiopian Empire 		 Italy Allies
Convoy OB 318 Battle of the Atlantic 1941-05-07 1941-05-10  United Kingdom  Germany Allies
Action of 8 May 1941 Indian Ocean 1941-05-08  United Kingdom  Germany Allies
Operation Brevity Western Desert campaign African Front 1941-05-15 1941-05-16  United Kingdom
 Australia 		 Germany
 Italy 		Inconclusive
Last battle of Bismarck Battle of the Atlantic 1941-05-18 1941-05-27  United Kingdom
Poland Poland 		 Germany Allies
Rethymno Balkans campaign Mediterranean Front 1941-05-20 1941-05-29  Australia
 Greece 		 Germany Axis
Crete Balkans campaign Mediterranean Front 1941-05-20 1941-06-01  New Zealand
 Greece
 United Kingdom
 Australia 		 Germany
 Italy 		Axis
Denmark Strait Battle of the Atlantic 1941-05-24  United Kingdom  Germany Axis
Operation Skorpion Western Desert campaign African Front 1941-05-26 1941-05-27  United Kingdom  Germany Axis
42nd Street Balkans campaign Mediterranean Front 1941-05-27  Australia
 New Zealand 		 Germany Allies
Litani River Syria–Lebanon campaign Middle Eastern Front 1941-06-09  United Kingdom
 Australia 		 Vichy France Allies
Jezzine Syria–Lebanon campaign Middle Eastern Front 1941-06-13 1941-06-14  Australia  Vichy France Allies
Sidon Syria–Lebanon campaign Middle Eastern Front 1941-06-13 1941-06-15  Australia  Vichy France Allies
Operation Battleaxe Western Desert campaign African Front 1941-06-15 1941-06-17  United Kingdom
Poland Poland
Czechoslovakia Czechoslovakia 		 Germany
 Italy 		Axis
Kissoué Syria–Lebanon campaign Middle Eastern Front 1941-06-15 1941-06-17  United Kingdom
 Free France 		 Vichy France Allies
Damascus Syria–Lebanon campaign Middle Eastern Front 1941-06-18 1941-06-21  United Kingdom
 Australia
 Free France 		 Vichy France Allies
Merdjayoun Syria–Lebanon campaign Middle Eastern Front 1941-06-19 1941-06-24  United Kingdom
 Australia 		 Vichy France Allies
Palmyra Syria–Lebanon campaign Middle Eastern Front 1941-06-21 1941-07-02  United Kingdom  Vichy France Allies
Operation Rentier Continuation War Eastern Front 1941-06-22  Soviet Union  Germany Axis
Brest Fortress Operation Barbarossa Eastern Front 1941-06-22 1941-06-29  Soviet Union  Germany Axis
Białystok–Minsk Operation Barbarossa Eastern Front 1941-06-22 1941-07-09  Soviet Union  Germany Axis
Gulf of Riga Baltic Sea campaigns Eastern Front 1941-06-22 1941-08  Soviet Union  Germany Axis
Soviet submarine campaign (1941) Baltic Sea campaigns Eastern Front 1941-06-22 1941-11  Soviet Union  Germany Inconclusive
Hanko Continuation War Eastern Front 1941-06-22 1941-12-02  Soviet Union  Finland Axis
German-Soviet air war 22 June 1941 Operation Barbarossa Eastern Front 1941-06-22  Soviet Union  Germany Axis
Raseiniai Operation Barbarossa Eastern Front 1941-06-23 1941-06-27  Soviet Union  Germany Axis
Brody Operation Barbarossa Eastern Front 1941-06-23 1941-06-30  Soviet Union  Germany Axis
Operation Platinum Fox Continuation War Eastern Front 1941-06-29 1941-09-21  Soviet Union  Germany
 Finland 		Allies
Finnish invasion of Ladoga Karelia Continuation War Eastern Front 1941-07 1941-08  Soviet Union  Finland
 Germany 		Axis
Operation Arctic Fox Continuation War Eastern Front 1941-07-01 1941-11-17  Soviet Union  Germany
 Finland 		Stalemate
Operation München Operation Barbarossa Eastern Front 1941-07-02 1941-07-26  Soviet Union Romania
 Germany 		Axis
Deir ez-Zor Syria–Lebanon campaign Middle Eastern Front 1941-07-03  United Kingdom  Vichy France Allies
Damour Syria–Lebanon campaign Middle Eastern Front 1941-07-05 1941-07-09  Australia  Vichy France Allies
Smolensk (1941) Operation Barbarossa Eastern Front 1941-07-10 1941-09-10  Soviet Union  Germany Axis
Kiev (1941) Operation Barbarossa Eastern Front 1941-07-07 1941-09-26  Soviet Union  Germany Axis
Finnish invasion of East Karelia Continuation War Eastern Front 1941-07-10 1941-12-06  Soviet Union  Finland
 Germany 		Axis
Beirut Syria–Lebanon campaign Middle Eastern Front 1941-07-12  United Kingdom
 Australia
 Free France 		 Vichy France Allies
Operation Substance Battle of the Mediterranean Mediterranean Front 1941-07-13 1941-07-28  United Kingdom
 Australia 		 Italy Allies
Uman Operation Barbarossa Eastern Front 1941-07-15 1941-08-08  Soviet Union  Germany
Romania
 Hungary
Slovakia 		Axis
Twin Pimples Western Desert campaign African Front 1941-07-17 1941-07-18  United Kingdom
 Australia 		 Italy Allies
Bengtskär Continuation War Eastern Front 1941-07-26  Soviet Union  Finland Axis
Operation EF Continuation War Eastern Front 1941-07-30  United Kingdom  Germany
 Finland 		Axis
Finnish invasion of the Karelian Isthmus Continuation War Eastern Front 1941-07-31 1941-09-05  Soviet Union  Finland Axis
Culqualber East African campaign African Front 1941-08-06 1941-11-21  United Kingdom
 South Africa
 Ethiopian Empire 		 Italy Allies
Odessa (1941) Operation Barbarossa Eastern Front 1941-08-08 1941-10-16  Soviet Union Romania
 Germany
 Italy 		Axis
Anglo-Soviet invasion of Iran Middle Eastern Front 1941-08-25 1941-08-31  Soviet Union
 United Kingdom
 Australia 		 Iran Allies
Soviet evacuation of Tallinn Continuation War Eastern Front 1941-08-27 1941-08-31  Soviet Union  Finland
 Germany 		Axis
Porlampi Continuation War Eastern Front 1941-08-30 1941-09-01  Soviet Union  Finland Axis
Loznica Uprising in Serbia Mediterranean Front 1941-08-31 Chetniks  Germany Yugoslavs
Leningrad Operation Barbarossa Eastern Front 1941-09-08 1944-01-27  Soviet Union  Germany
 Finland