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Portal:World War II

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World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier. The vast majority of the world's countries—including all of the great powers—eventually formed two opposing military alliances: the Allies and the Axis. It was the most global war in history; it directly involved more than 100 million people from over 30 countries. In a state of total war, the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. World War II was the deadliest conflict in human history, marked by 50 to 85 million fatalities, most of whom were civilians in the Soviet Union and China. It included massacres, the genocide of the Holocaust, strategic bombing, premeditated death from starvation and disease and the only use of nuclear weapons in war.

The Empire of Japan aimed to dominate Asia and the Pacific and was already at war with the Republic of China in 1937, but the world war is generally said to have begun on 1 September 1939, the day of the invasion of Poland by Nazi Germany and the subsequent declarations of war on Germany by France and the United Kingdom. From late 1939 to early 1941, in a series of campaigns and treaties, Germany conquered or controlled much of continental Europe, and formed the Axis alliance with Italy and Japan. Under the Molotov–Ribbentrop Pact of August 1939, Germany and the Soviet Union partitioned and annexed territories of their European neighbours, Poland, Finland, Romania and the Baltic states. The war continued primarily between the European Axis powers and the coalition of the United Kingdom and the British Commonwealth, with campaigns including the North Africa and East Africa campaigns, the aerial Battle of Britain, the Blitz bombing campaign, and the Balkan Campaign, as well as the long-running Battle of the Atlantic. On 22 June 1941, the European Axis powers launched an invasion of the Soviet Union, opening the largest land theatre of war in history, which trapped the Axis, most crucially the German Wehrmacht, into a war of attrition. In December 1941, Japan attacked the United States and European colonies in the Pacific Ocean, and quickly conquered much of the Western Pacific. The Japanese conquests were perceived by many in Asia as liberation from Western dominance; as such, several armies from the conquered territories aided the Japanese.

The Axis advance halted in 1942 when Japan lost the critical Battle of Midway, and Germany and Italy were defeated in North Africa and then, decisively, at Stalingrad in the Soviet Union. In 1943, with a series of German defeats on the Eastern Front, the Allied invasions of Sicily and Italy which brought about Italian surrender, and Allied victories in the Pacific, the Axis lost the initiative and was forced into strategic retreat on all fronts. In 1944, the Western Allies invaded German-occupied France, while the Soviet Union regained all of its territorial losses and invaded Germany and its allies. During 1944 and 1945 the Japanese suffered major reverses in mainland Asia in South Central China and Burma, while the Allies crippled the Japanese Navy and captured key Western Pacific islands.

The war in Europe concluded with an invasion of Germany by the Western Allies and the Soviet Union, culminating in the capture of Berlin by Soviet troops, the suicide of Adolf Hitler and the subsequent German unconditional surrender on 8 May 1945. Following the Potsdam Declaration by the Allies on 26 July 1945 and the refusal of Japan to surrender under its terms, the United States dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August respectively. With an invasion of the Japanese archipelago imminent, the possibility of additional atomic bombings and the Soviet invasion of Manchuria, Japan formally surrendered on 2 September 1945. Thus ended the war in Asia, cementing the total victory of the Allies.

World War II changed the political alignment and social structure of the world. The United Nations (UN) was established to foster international co-operation and prevent future conflicts. The victorious great powers—China, France, the Soviet Union, the United Kingdom, and the United States—became the permanent members of the United Nations Security Council. The Soviet Union and the United States emerged as rival superpowers, setting the stage for the Cold War, which lasted for the next 46 years. Meanwhile, the influence of European great powers waned, while the decolonisation of Africa and Asia began. Most countries whose industries had been damaged moved towards economic recovery. Political integration, especially in Europe, emerged as an effort to end pre-war enmities and to create a common identity.

The World War II Portal

Clockwise from top left: Commonwealth troops in the desert; Chinese civilians being buried alive by Japanese soldiers; Soviet forces during a winter offensive; Carrier-borne Japanese planes readying for take off; Soviet troops fighting in Berlin; A German submarine under attack.

World War II, or the Second World War, was a global military conflict. It began as the joining of what had initially been two separate conflicts, with the first beginning in Asia in 1937 (the Second Sino-Japanese War) and the other beginning in Europe in 1939 (the German and Soviet invasion of Poland).

The war split the majority of the world's nations into two opposing military alliances: the Allies and the Axis. It involved the mobilization of over 100 million military personnel, making it the most widespread war in history, and placed the participants in a state of "total war", which erased the distinction between civil and military resources and resulted in the complete activation of a nation's economic, industrial, and scientific capabilities for the purposes of the war effort. Over 70 million people, the majority of them civilians, were killed, making it the deadliest conflict in human history.

The Allies won the war, and as a result, the Soviet Union and the United States emerged as the world's leading superpowers. This set the stage for the Cold War, which lasted for the next 45 years. The United Nations was formed in the hope of preventing another such conflict. The self-determination spawned by the war accelerated decolonization movements in Asia and Africa, while Europe itself began moving toward integration.

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3/3's Insignia
3rd Battalion 3rd Marines (3/3) is an infantry battalion in the United States Marine Corps, based out of Kāne'ohe, Hawai'i, and consisting of approximately 800 Marines and Sailors.Known as "America's Battalion", the unit falls under the 3rd Marine Regiment of the 3rd Marine Division.The battalion was originally at Camp Lejeune, North Carolina in 1942 and saw action on both Bougainville and Guam during World War II. Following the war, it was disbanded until 1951, when it was reformed in California. The battalion was alerted for possible deployment during the 1956 Suez War and the 1958 intervention in Lebanon. In 1965, the Marines of 3rd Battalion were deployed to Vietnam and participated in Operation Starlite, the first major Marine engagement of that conflict. The battalion continued to see major action through the Vietnam War and was rotated back to the United States in 1969. Around the end of the Vietnam War, 3rd Battalion was deactivated for a second time in 1974.


Selected equipment

HMS Royal Oak in 1937
His Majesty's Ship Royal Oak (pennant number 08) was a Revenge-class battleship of the British Royal Navy, torpedoed in Scapa Flow by the German submarine U-47 on 14 October 1939. Launched in 1914 and completed in 1916, Royal Oak first saw action at the Battle of Jutland. In peacetime, she served in the Atlantic, Home and Mediterranean fleets, coming under accidental attack on more than one occasion. The ship became the centre of worldwide attention in 1928 when her senior officers were controversially court-martialled. During a twenty-five year career, attempts to modernise Royal Oak could not address her fundamental lack of speed, and by the start of the Second World War, she was no longer suited to front-line duty.Royal Oak was anchored at Scapa Flow in Orkney, Scotland when she became the first of the five Royal Navy battleships and battlecruisers sunk in the Second World War. The loss of life was heavy: of Royal Oak complement of 1,234 men, 833 were killed that night or died later of their wounds.


Selected battle

The Battle of Moscow (Russian: Битва за Москву, Romanized: Bitva za Moskvu, German: Schlacht um Moskau) is the name given the Nazi strategic offensive Operation Typhoon, and a series of Soviet strategic and smaller operations executed during the defense of Moscow, and the subsequent Soviet counter-offensive that occurred between October 1941 and January 1942 on the Eastern Front during World War II as a response to the Hitler's strategy that considered Moscow, capital of the Union of Soviet Socialist Republics (USSR) and the largest Soviet city, to be the primary military and political objective for Axis forces in their invasion of the Soviet Union. A separate operational German plan was codenamed Operation Wotan was included in the concluding phase of the German offensive.In August 1941, German forces captured the city of Smolensk, an important stronghold on the road to Moscow. Smolensk was historically considered as the "key" to Moscow because it controlled a landbridge located between the Dvina, Dnieper, and several other rivers, allowing for a fast advance by ground troops without the necessity of building major bridges across wide rivers.


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Credit: Motion Picture Division of the U.S. National Archives.

During World War II, and especially in 1943, Hamburg, Germany was severely damaged by aerial bombardment, with some 55,000 people killed.

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Franklin D. Roosevelt
Franklin Delano Roosevelt often referred to by his initials FDR, was the thirty-second President of the United States. Elected to four terms in office, he served from 1933 to 1945 and is the only U.S. president to have served more than two terms. He was a central figure of the 20th century during a time of worldwide economic crisis and world war. During the Great Depression of the 1930s, Roosevelt created the New Deal to provide relief for the unemployed, recovery of the economy, and reform of the economic and banking systems. Although recovery of the economy was incomplete until almost 1940, the programs he initiated such as the Federal Deposit Insurance Corporation (FDIC), Tennessee Valley Authority (TVA), and the United States Securities and Exchange Commission (SEC) continue to have instrumental roles in the nation's commerce. One of his most important legacies is the Social Security system. As Britain warred with Nazi Germany, Roosevelt provided Lend-Lease aid to Winston Churchill and the British war effort before America's entry into World War II in December, 1941.


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"As soon as the idea was introduced that all men were equal before God, that world was bound to collapse."
Adolf Hitler, 26 February 1942.

Topics

World War II
Theatres Main events Specific articles Participants

Prelude
Causes
in Europe
in Asia

Main theatres
Europe
Eastern Europe
China
Mediterranean, Middle East and Africa
Asia and the Pacific
Atlantic

General timeline
Timeline

1939
Invasion of Poland
Winter War

1940
Invasion of Denmark/Norway
Battle of France
Battle of Britain

1941
Invasion of the Soviet Union
Battle of Moscow
Attack on Pearl Harbor

1942
Battle of Midway
Battle of Stalingrad
Second Battle of El Alamein

1943
Battle of Kursk
Guadalcanal campaign
Invasion of Italy

1944
Battle of Normandy
Operation Bagration
Battle of Leyte Gulf
Operation Market Garden
Battle of the Bulge

1945
Battle of Iwo Jima
Battle of Okinawa
Battle of Berlin
End in Europe
Hiroshima and Nagasaki
Surrender of Japan

more...

Blitzkrieg
Cryptography
Equipment
Home Front
Military engagements
Production
Resistance
Technology

Civilian impact and atrocities
Nanking Massacre
The Holocaust
Siege of Leningrad
Bataan Death March
Dutch famine of 1944
Bengal famine of 1943
Hiroshima and Nagasaki
Unit 731
Strategic bombings
Comfort women
Allied war crimes
German war crimes
Japanese war crimes

Aftermath
Effects
Casualties
Expulsion of Germans
Denazification
Cold War
Universal Declaration of Human Rights
Decline of the British Empire

The Allies
Australia Australia
Belgium Belgium
Brazil Brazil
British Raj British India
Canada Canada
Czechoslovakia Czechoslovakia
Kingdom of Egypt Egypt
El Salvador El Salvador
French Third Republic France (after June 16, 1940: Free France Free France)
Kingdom of Greece Greece
Netherlands Netherlands
Dominion of New Zealand New Zealand
Norway Norway
Commonwealth of the Philippines Philippines
Poland Poland
Republic of China (1912–1949) Republic of China
Union of South Africa South Africa
Soviet Union Soviet Union
United Kingdom United Kingdom
United States United States
Kingdom of Yugoslavia Yugoslavia

more...

The Axis
Kingdom of Bulgaria Bulgaria
 Croatia
Empire of Japan Japan
Finland Finland
 Vichy France
Kingdom of Hungary (1920–46) Hungary
Kingdom of Italy Italy
Nazi Germany Germany
Kingdom of Romania Romania
Thailand Thailand
 Slovakia

more...


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From the World War II task force of the Military history WikiProject:

Attention needed
...to referencing and citation  • ...to coverage and accuracy  • ...to structure  • ...to grammar  • ...to supporting materials 
Popular pages
Full list
Cleanup needed
Battle of Kiev (1943)Battle of Ko ChangColditz CastleSpiritual national defenceTuskegee Airmen
Requested articles 
Battle of Uhtua-KiestinkiBattles of Repola-RukajärviBattle of SiiranmäkiBattle of ŁuckBattle of RówneBattle of Włodzimierz WołyńskiBattle of LubartówBattle of MiednikiBattle of JodłaFrancis BlanchainShinshou DraengerChrister Lyst HansenHolocaust slave labor litigationOve KampmanLeague for Combat PolicyFrederick Charles LoughJulien MelineOperation BigotOperation MittelmeerOperation RichardOtto ProgramMartin PoppelRoehm's AvengersDorothy TartierePoul BruunRaoul BoulangerSerge Asher-RavanelBattle of West Ukraine (1941)Battle of ZunyiFree Dutch Forces (draft, please assist) • Liberation of Denmark (currently redirect) • Operation Vado (currently redirect) • Finnish 19th Division (Continuation War)Finnish 11th Division (Continuation War)Finnish VII Corps (Continuation War)Finnish VI Corps (Continuation War)Finnish IV Corps (Continuation War)Finnish Cavalry Brigade1st Jaeger Brigade2nd Jaeger BrigadeFinnish 1st Division (Continuation War)168th Rifle Division (Soviet Union)71st Rifle Division (Soviet Union)Group OinonenA.S. Ksenofontov (ru) • Ponomarev Dmitry Grigorievich (ru) (ref); Siege of Tobruk (June 1942) (ref)
Expansion needed
Princess Irene BrigadeBattle of Bay of ViipuriDemilitarisation; Martha DesrumeauxMochitsura HashimotoOperation CascadeOperation Tan No. 2Burma Area ArmyBattle of CourlandBattle of Munda PointBattle of Voronezh (1943)Drive on Munda PointFirst Battle of KharkovRace to BerlinMarie FourcadeVictor Strydonck de BurkelDonald BlakesleeOperation NordwindBattle of Skerki BankMichael Sinclair (soldier)Battle of MaastrichtBattle of ZeelandLandings on RendovaNew Georgia counterattackOperation WaterfallPetsamo–Kirkenes OffensiveRaid on ChoiseulAmerican-British-Dutch-Australian CommandBattle of Viru HarborBattle of Wickham AnchorageWestern New Guinea campaign (and the individual battles of the campaign) • Operation Blockbustermore
Images needed
Twelfth Army (United Kingdom)4th Airborne Division (United Kingdom)5th Airborne Division (United Kingdom)XVI Corps (United Kingdom)Battle of DakarBattle of the Lys (1940)Battle of ZeelandBattle of the GrebbebergFranco-Thai WarBattle of Ko ChangSwitzerland during the World Wars; Berthe Fraser
Merging needed
Add an article here!
Citations needed
Battle of Borneo (1941–42)Garderegiment Fuseliers Prinses IreneJapanese invasion of French IndochinaJapanese invasion of ThailandLuxembourg in World War IINew Georgia CampaignOperation CartwheelOperation ChastiseRoyal Netherlands Motorized Infantry BrigadeSolomon Islands campaign
Translation needed 
pt:Tobrouk (militar)

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