World War 2 By Tom8o Sep 1, 1939 German invasion of Poland Sep 3, 1939 France and great Britain declare war on Germany Apr 9, 1940 Germany invades and takes control of Denmark and Norway. May 30, 1940 Winston Churchill becomes leader of the British government. 1940 May 30 - Winston Churchill becomes leader of the British government. Jun 10, 1940 Italy enters the war as a member of the Axis powers Jul 10, 1940 Germany launches an air attack on Great Britain. Battle of Britain Sep 22, 1940 Germany, Italy, and Japan sign the Tripartite Pact creating the Axis Alliance. Jun 22, 1941 Germany and the Axis Powers attack Russia. Dec 7, 1941 The Japanese attack the US Navy in Pearl Harbor. Dec 8, 1941 the US enters World War II on the side of the Allies. Jun 4, 1942 The US Navy defeats the Japanese navy at the Battle of Midway. Jul 10, 1942 The Allies invade and take the island of Sicily. Sep 3, 1943 Italy surrenders to the Allies Jun 6, 1944 D-day and the Normandy invasion. Aug 25, 1944 Paris is liberated from German control. Dec 16, 1944 The Germans launch a large attack in the Battle of the Bulge. Feb 19, 1945 US Marines invade the island of Iwo Jima. Apr 30, 1945 Adolf Hitler commits suicide as he knows Germany has lost the war. May 7, 1945 Germany surrenders to the Allies Aug 6, 1945 The United States drops the Atomic Bomb on Hiroshima, Japan. Aug 9, 1945 Another atomic bomb is dropped on Nagasaki, Japan. Sep 2, 1945 Japan surrenders to US General Douglass MacArthur and the Allies.