World War II

World War II
Richard Opitz · CC BY-SA 3.0 de · source
Conflict	World War II
Date	1 September 1939 – 2 September 1945
Place	Europe, Pacific, Atlantic, South-East Asia, China, Middle East, Mediterranean, North Africa, Horn of Africa, Australia, briefly North and South America
Result	Allied victory
Combatant1	Allies, • United States, • Soviet Union, • United Kingdom, • China, • France, • Poland, • Canada, • Australia, • New Zealand, • India, • South Africa, • Yugoslavia, • Greece, • Netherlands, • Belgium, • Norway, • Czechoslovakia, • Brazil, • Mexico, • Philippines, • Mongolia, • Tuva
Combatant2	Axis, • Germany, • Japan, • Italy, • Hungary, • Romania, • Bulgaria, • Slovakia, • Croatia, • Finland, • Thailand, • Iraq

World War II was a global conflict that lasted from 1939 to 1945, involving the vast majority of the world's nations. It resulted in an unprecedented scale of destruction and the deaths of tens of millions, including the systematic genocide of six million Jews in the Holocaust. The war ended with the total victory of the Allies over the Axis powers, fundamentally reshaping the international order and setting the stage for the Cold War.

Background and causes

The primary catalyst was the expansionist and aggressive foreign policies of Nazi Germany under Adolf Hitler, Fascist Italy under Benito Mussolini, and the Empire of Japan. These regimes sought to overturn the post-World War I settlement established by the Treaty of Versailles and expand their territories. Key events leading to the outbreak included the Second Italo-Ethiopian War, the Spanish Civil War, the Japanese invasion of Manchuria, and the Anschluss of Austria into Germany. The policy of appeasement by Britain and France, exemplified by the Munich Agreement over Czechoslovakia, failed to deter Hitler, whose invasion of Poland on 1 September 1939 triggered the declaration of war.

Major participants and alliances

The conflict was primarily fought between two major military alliances: the Allies and the Axis powers. The principal Allied powers were the United Kingdom, the Soviet Union, the United States, and the Republic of China. Key leaders included Winston Churchill, Joseph Stalin, Franklin D. Roosevelt, and Chiang Kai-shek. The major Axis powers were Germany, led by Adolf Hitler, the Japan of Emperor Hirohito, and Italy under Benito Mussolini. Other significant Axis members included the Hungary of Miklós Horthy, the Romania of Ion Antonescu, and the Kingdom of Bulgaria.

Course of the war

The war in Europe began with the German invasion of Poland, leading to the Phoney War and the subsequent Battle of France. After the Battle of Britain, the war expanded with the German invasion of the Soviet Union in Operation Barbarossa and the Japanese attack on Pearl Harbor, which brought the United States into the conflict. Major turning points included the Battle of Stalingrad, the Battle of Midway, and the Allied invasion of Sicily. The Western Front was reopened with the Normandy landings and the Battle of the Bulge. The war in Europe concluded with the Battle of Berlin and Victory in Europe Day. In the Pacific War, fierce campaigns like the Battle of Iwo Jima and the Battle of Okinawa led to the atomic bombings of Hiroshima and Nagasaki, resulting in Victory over Japan Day.

The Holocaust and other atrocities

The war was marked by systematic atrocities and crimes against humanity. The Holocaust, orchestrated by Nazi Germany, aimed at the extermination of European Jews and other groups, including Romani people, Slavs, and the disabled, through extermination camps like Auschwitz and Treblinka. Other mass crimes included the Nazi crimes against the Polish nation, the Rape of Nanking by Imperial Japanese Army forces, the Unit 731 biological warfare experiments, and the Soviet war crimes such as the Katyn massacre. The Allied war crimes, though not on the same scale, also occurred, including the Bombing of Dresden.

Aftermath and legacy

The conflict resulted in an estimated 70–85 million fatalities, the redrawing of national borders, and the beginning of the decolonization of Asia and Africa. The United Nations was established to foster international cooperation and prevent future conflicts. Europe was divided by the Iron Curtain, leading to the Cold War between the United States-led Western Bloc and the Soviet Union-led Eastern Bloc. The Nuremberg trials and Tokyo trials established precedents for international law on war crimes and crimes against humanity. Technological and scientific advances, including the dawn of the nuclear age and the development of radar and penicillin, had profound and lasting impacts on the post-war world.

Category:World War II Category:Wars