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.
The Spanish Civil War was a civil war in Spain fought from 1936 to 1939. Republicans loyal to the elected, left-leaning Second Spanish Republic, in alliance with anarchists, fought against a revolt by the Nationalists, an alliance of Falangists, monarchists, conservatives and Catholics, led by a military group among whom General Francisco Franco soon achieved a preponderant role. Due to the international political climate at the time, the war had many facets, and was variously viewed as class struggle, a war of religion, a struggle between dictatorship and republican democracy, between revolution and counterrevolution, between fascism and communism. It has been frequently called the "dress rehearsal" for World War II.
The Second Sino-Japanese War was a military conflict fought primarily between the Republic of China and the Empire of Japan from July 7, 1937, to September 2, 1945. It began with the Marco Polo Bridge Incident in 1937 in which a dispute between Japanese and Chinese troops escalated into a battle. Some sources in the modern People's Republic of China date the beginning of the war to the Japanese invasion of Manchuria in 1931. It is known as the War of Resistance in China.
The Italian invasion of Albania was a brief military campaign by the Kingdom of Italy against the Kingdom of Albania. The conflict was a result of the imperialist policies of Italian dictator Benito Mussolini. Albania was rapidly overrun, its ruler, King Zog I, forced into exile, and the country made part of the Italian Empire as a protectorate in personal union with the Italian crown.
The Winter War was a military conflict between the Soviet Union (USSR) and Finland. It began with a Soviet invasion of Finland on 30 November 1939, three months after the outbreak of World War II, and ended three and a half months later with the Moscow Peace Treaty on 13 March 1940. The League of Nations deemed the attack illegal and expelled the Soviet Union from the organisation.
The Norwegian campaign was the attempted Allied liberation of Norway from Nazi Germany during the early stages of World War II and directly following the German invasion and occupation of the Norwegian mainland and government. It took place from April 9, 1940, until June 10, 1940. The Allied campaign did not succeed, and it resulted in the fleeing of King Haakon VII along with the remainder of the royal family to Great Britain.
The Lapland War was fought between Finland and Nazi Germany effectively from September to November 1944 in Finland's northernmost region, Lapland, during World War II. Although Finns and Germans had been fighting the Soviet Union (USSR) together since 1941 during the Continuation War, the Soviet Vyborg–Petrozavodsk Offensive in the summer of 1944 forced Finnish leadership to negotiate a separate peace agreement. The Moscow Armistice demanded Finland break diplomatic ties with Germany and expel or disarm any German soldiers remaining in Finland after 15 September 1944.
Supreme Headquarters Allied Expeditionary Force was the headquarters of the Commander of Allied forces in north west Europe, from late 1943 until the end of World War II. U.S. General Dwight D. Eisenhower was the commander in SHAEF throughout its existence. The position itself shares a common lineage with Supreme Allied Commander Europe and Atlantic, but they are different titles.
Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied Western Europe during World War II. The operation was launched on 6 June 1944 with the Normandy landings. A 1,200-plane airborne assault preceded an amphibious assault involving more than 5,000 vessels. Nearly 160,000 troops crossed the English Channel on 6 June, and more than two million Allied troops were in France by the end of August.
Operation Dragoon was the code name for the Allied invasion of Southern France on 15 August 1944. The operation was initially planned to be executed in conjunction with Operation Overlord, the Allied landing in Normandy, but the lack of available resources led to a cancellation of the second landing. By July 1944 the landing was reconsidered, as the clogged-up ports in Normandy did not have the capacity to adequately supply the Allied forces. Concurrently, the French High Command pushed for a revival of the operation that would include large numbers of French troops. As a result, the operation was finally approved in July to be executed in August.
The Battle of France, also known as the Fall of France, was the German invasion of France and the Low Countries during the Second World War. France had previously invaded Germany in 1939. In the six weeks from 10 May 1940, German forces defeated Allied forces by mobile operations and conquered France, Belgium, Luxembourg and the Netherlands, bringing land operations on the Western Front to an end until the Normandy landings on 6 June 1944. Italy entered the war on 10 June 1940 and invaded France over the Alps.
The Benelux Union, also known as simply Benelux, is a politico-economic union and formal international intergovernmental cooperation of three neighboring states in western Europe: Belgium, Netherlands, and Luxembourg. The name Benelux is a portmanteau formed from joining the first two or three letters of each country's name – Belgium, Netherlands, Luxembourg – and was first used to name the customs agreement that initiated the union. It is now used more generally to refer to the geographic, economic and cultural grouping of the three countries.
The Battle of Britain was a military campaign of the Second World War, in which the Royal Air Force (RAF) defended the United Kingdom (UK) against large-scale attacks by Nazi Germany's air force, the Luftwaffe. It has been described as the first major military campaign fought entirely by air forces. The British officially recognise the battle's duration as being from 10 July until 31 October 1940, which overlaps the period of large-scale night attacks known as the Blitz, that lasted from 7 September 1940 to 11 May 1941. German historians do not accept this subdivision and regard the battle as a single campaign lasting from July 1940 to June 1941, including the Blitz.
The invasion of Poland, marked the beginning of World War II. The German invasion began on 1 September 1939, one week after the signing of the Molotov–Ribbentrop Pact between Germany and the Soviet Union. The Soviets invaded Poland on 17 September. The campaign ended on 6 October with Germany and the Soviet Union dividing and annexing the whole of Poland under the terms of the German–Soviet Frontier Treaty.
The Eastern Front of World War II was a theatre of conflict between the European Axis powers and co-belligerent Finland against the Soviet Union (USSR), Poland and other Allies, which encompassed Central Europe, Eastern Europe, Northeast Europe (Baltics), and Southeast Europe (Balkans) from 22 June 1941 to 9 May 1945. It has been known as the Great Patriotic War in the former Soviet Union and modern Russia, while in Germany it was called the Eastern Front, or the German-Soviet War by outside parties.
Operation Barbarossa was the code name for the Axis invasion of the Soviet Union, which started on Sunday, 22 June 1941, during World War II. The operation stemmed from Nazi Germany's ideological aim of conquering the western Soviet Union so that it could be repopulated by Germans, and to also use some Slavs as a slave labour force for the Axis war effort and to annihilate the rest according to Generalplan Ost, and to acquire the oil reserves of the Caucasus and the agricultural resources of Soviet territories.
Allied Force Headquarters (AFHQ) was the headquarters that controlled all Allied operational forces in the Mediterranean Theatre of World War II from late 1942 until the end of the war in Europe in May 1945.
The North African campaign of the Second World War took place in North Africa from 10 June 1940 to 13 May 1943. It included campaigns fought in the Libyan and Egyptian deserts and in Morocco and Algeria, as well as Tunisia.
The invasion of Yugoslavia, also known as the April War or Operation 25, was a German-led attack on the Kingdom of Yugoslavia by the Axis powers which began on 6 April 1941 during World War II. The order for the invasion was put forward in "Führer Directive No. 25", which Adolf Hitler issued on 27 March 1941, following the Yugoslav coup d'état.
The European Theater of Operations, United States Army (ETOUSA) was a United States Army formation which directed US Army operations in parts of Europe from 1942 to 1945. It referred to Army Ground Forces, United States Army Air Forces, and Army Service Forces operations north of Italy and the Mediterranean coast, in the European Theater of World War II. It was bordered to the south by the North African Theater of Operations, US Army (NATOUSA), which later became the Mediterranean Theater of Operations (MTOUSA).
The Asiatic-Pacific Theater, was the theater of operations of U.S. forces during World War II in the Pacific War during 1941–45. From mid-1942 until the end of the war in 1945, there were two U.S. operational commands in the Pacific. The Pacific Ocean Areas (POA), divided into the Central Pacific Area, the North Pacific Area and the South Pacific Area, were commanded by Admiral Chester W. Nimitz, Commander-in-Chief Pacific Ocean Areas. The South West Pacific Area (SWPA) was commanded by General Douglas MacArthur, Supreme Allied Commander South West Pacific Area. During 1945, the United States added the United States Strategic Air Forces in the Pacific, commanded by General Carl A. Spaatz.
The European theatre of World War II, also known as the Second European War, was a huge area of heavy fighting across Europe, starting with Germany's invasion of Poland on 1 September 1939 and ending with the Soviet Union conquering most of Eastern Europe and Germany’s unconditional surrender on 8 May 1945. The Allied powers fought the Axis powers on two major fronts as well as in a massive air war and in the adjoining Mediterranean and Middle East theatre.
The South-East Asian Theatre of World War II was the name given to the campaigns of the Pacific War in Burma, Ceylon, India, Thailand, the Philippines, Indochina, Malaya and Singapore. Conflict in this theatre began when the Empire of Japan invaded French Indochina in September 1940 and rose to a new level following the raid on Pearl Harbor, and simultaneous attacks on Hong Kong, the Philippines, Thailand, Singapore and Malaya on 7 and 8 December 1941. The main landing at Singora on the east side of the Isthmus of Kra preceded the bombing of Pearl Harbor by several hours. Action in the theatre officially ended on 9 September 1945.
Pacific Ocean Areas was a major Allied military command in the Pacific Ocean theater of World War II. It was one of four major Allied commands during the Pacific War, and one of three United States commands in the Asiatic-Pacific Theater. Admiral Chester W. Nimitz of the U.S. Navy, Commander in Chief, U.S. Pacific Fleet, headed the command throughout its existence.
Battle Honours are awarded by the Sovereign to Royal Air Force squadrons to commemorate the squadron's role in a particular operation.
The Allies of World War II, called the United Nations from the 1 January 1942 declaration, were the countries that together opposed the Axis powers during the Second World War (1939–1945). The Allies promoted the alliance as a means to control German, Japanese and Italian aggression.
The South West Pacific theatre, during World War II, was a major theatre of the war between the Allies and the Axis. It included the Philippines, the Dutch East Indies, Borneo, Australia and its mandate Territory of New Guinea and the western part of the Solomon Islands. This area was defined by the Allied powers' South West Pacific Area (SWPA) command.
The Allied leaders of World War II listed below comprise the important political and military figures who fought for or supported the Allies during World War II. Engaged in total war, they had to adapt to new types of modern warfare, on the military, psychological and economic fronts.
The following outline is provided as an overview of and topical guide to World War II:
This is a bibliographyof works on World War II.