This is a timeline of events that stretched over the period of World War II. For events preceding . Stalin tells that "an accident" might happen between Finnish and Soviet troops, if the negotiations last too long. First air attack on Great Britain. Important events of and the start of the Second World War, including Prime Minister Chamberlain's (pictured to the left) ultimatum to Hitler; withdraw. Hitler's invasion of Poland in September drove Great Britain and France to declare war on Germany, and World War II had begun. Over the next six years.
On Sept. 1, , Nazi Germany invaded Poland, the act that started World War II . Learn more about what happened in history on Sept. 1». Timeline of World War II covering political and military events of Timeline of World War II. , , , , , , March 15, Czechoslovakia to be held in Finland, are cancelled. divider | NEXT Next .
Japan invades China, initiating World War II in the Pacific. March 11–13, November 30, –March 12, The Soviet Union. This World War II timeline highlights important dates from September to April Follow the events of World War II and the German invasion. World War II (WWII) was a long and bloody war that lasted for six years, from to See a detailed World War II timeline here. World War II () was the largest armed conflict in human history. Ranging over six continents and all the world's oceans, the war caused an estimated.