The Nazis invaded Poland on September 1. On September 3, Great Britain and France declared war against Germany. On September 17, the Soviet Union invaded Poland from the east. Poland surrenders and is divided between Germany and the Soviet Union.
Denmark surrendered on April 9, Norway surrendered on June 9.
France is attacked. Luxembourg is attacked and occupied on May 10. Belgium surrendered May 28. Italy enters war on June 10.
Germany, Italy and Japan sign the Tripartite Pact, forming the Axis powers.
Slovakia, Hungary, and Romania join axis powers.
The Axis powers invade the Soviet Union.
On December 7, Japan bombs Pearl Harbor. On December 8, the US declares war on Japan, entering WWII. The Axis powers declare war on the US December 11.
Axis powers launch plan again Soviet Union. German troops fight into Stalingrad and take over the Caucasus after getting the Crimean Peninsula.
On June 6, US forces successfully land on the beaches of Normandy in France, being a second from against the Germans. On July 25, US forces break out of Normandy and head towards Paris.
Germans launch offense in west, the Battle of the Bulge, hoping to re-conquer Belgium and split the Allied forces. Germans retreat by January 1.
Germany surrenders to western Allies May 7 and to the Soviets on May 9.
The US drop atomic bombs on Hiroshima and Nagasaki.
Japan formally surrenders, ending WWII.