World War 2. By maryaustin44 Aug 23, 1939 Germany and the Soviet Union sign the Nazi-Soviet Non-Aggression Pact Sep 1, 1939 Germany invades Poland, starting World War 2 Sep 3, 1939 Britain and France declare war on Germany May 10, 1940 Germany invades France, Belgium, and the Netherlands Jun 10, 1940 Italy declares war on France and Great Britain Jun 22, 1941 Germany invades the Soviet Union (Operation Barbarossa) Dec 7, 1941 The Japanese launch a sneak attack on Pearl Harbor, Hawaii Dec 11, 1941 Germany and Italy declare war on the United States; then the United States declares war on Germany and Italy Feb 19, 1942 Roosevelt issues Executive Order 9066 Nov 8, 1942 The Allies invade North Africa Feb 2, 1943 The Germans surrender at Stalingrad, Soviet Union Sep 3, 1943 Italy surrenders Jun 6, 1944 D-Day Aug 6, 1945 The United States drops the first atomic bomb on Hiroshima, Japan Aug 9, 1945 The United States drops a second atomic bomb on Nagasaki, Japan
