The city of Paris started mobilizing for war in September 1939, when Nazi Germany and the Soviet Union attacked Poland, but the war seemed far away until...

World War II or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers...

World War II saw the largest scale of war crimes and crimes against humanity ever committed in an armed conflict, mostly against civilians and POWs. Most...

Almost every country in the world participated in World War II. Most were neutral at the beginning, but only a relative few nations remained neutral to...

List of theatres 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...

on 1 September 1939, starting World War II. The Soviets invaded eastern Poland on 17 September. Following the Winter War with Finland, the Soviets were...

World War II was the deadliest military conflict in history. An estimated total of 70–85 million people perished, or about 3% of the estimated global...

of World War II. Timeline of events preceding World War II Timeline of World War II (1939) Timeline of World War II (1940) Timeline of World War II (1941)...

The European theatre of World War II was one of the two main theatres of combat during World War II, taking place from September 1939 to May 1945. The...

timeline of declarations of war during World War II. A declaration of war is a formal act by which one nation goes to war against another. The declaration...