The List of theaters and campaigns of World War II subdivides military operations of World war II and contemporary wars by war, then by theater and then by campaign.
Second Italo-Abyssinian War
Spanish Civil War
Second Sino-Japanese War
Soviet-Japanese Border War (1939)
Italian invasion of Albania
Slovak-Hungarian War
Winter War
Phony War
Invasion of Finland (November 1939-March 1940)
Invasion of Denmark and Norway (April–June 1940)
Battle of France (with Benelux countries/Fall Gelb) (May–June 1940)
Battle of Britain ( + Operation Sea Lion Unternehmen Seelöwe ) (July–October 1940)
Western Front (1944–1945)
Battle of Normandy (June–August 1944)
Northern France Campaign (July–September 1944)
Southern France Campaign (Operation Dragoon) (August–September 1944)
Battle of the Siegfried Line (Rhineland Campaign, Ardennes-Alsace Campaign) (August–December 1944)
Central Europe Campaign (March–May 1945)
Battle of Poland (Operation Fall Weiss) (1939)
Winter War (Russo-Finnish War) (November 30, 1939 – March 13, 1940)
Eastern Front (initially Operation Barbarossa) (June 1941 to May 1945)
Continuation War (Finland) (June 1941-September 1944)
Mediterranean, African and Middle East Theatre
East African Campaign
North African Campaign
Western Desert Campaign
Tunisia Campaign
Invasion of Yugoslavia (Operation Punishment) (April 1941)
Battle of Greece (Operation Marita) (October 1940 to April 1941)
Battle of Crete (Operation Mercury) (May–June 1941)
World War II in Yugoslavia (April 1941 to May 1945)
Anglo-Iraqi War
Syria-Lebanon campaign
Anglo-Soviet invasion of Iran
Italy (July 1943-May 1945)
Sino-Japanese War
American-British-Dutch-Australian Command
Pacific Theater of Operations
Pacific Ocean Areas
South West Pacific Area
South-East Asian Theatre
Burma Campaign
China Burma India Theatre
Japan
Soviet Manchurian Campaign (1945)
Aleutians
Americas
Australia
Arctic and Antarctica
West Africa (1940)
Madagascar (1942)
Battle of the Atlantic
Arctic Convoys (Operation Rösselsprung)
Battle of the Mediterranean
Battle of the Indian Ocean
Battle of Britain
Strategic bombing during World War II
Atomic bombings of Hiroshima and Nagasaki
Chinese Civil War (April 12, 1927 – May 1, 1950)
Second Sino-Japanese War (July 7, 1937 – September 9, 1945)
Soviet-Japanese Border War (May 11, 1939 – September 16, 1939)
French-Thai War (September 1, 1940 – May 9, 1941)
Continuation War (June 25, 1941 – September 19, 1944)
Ecuadorian-Peruvian War (July 5, 1941 – February 13, 1942)
Lapland War (October 1, 1944 – April 25, 1945)
Greek Civil War (December 3, 1944 – October 16, 1949)
Seven Enemy Offensive (September 27, 1941 – June 6, 1944)
Anglo-Iraqi War (May 2 – 31, 1941)
List of theaters and campaigns of World War II Wikipedia (Text) CC BY-SA