world war II timeline by kristen By kristenasdfghjkl Sep 1, 1939 World War II started Sep 17, 1939 Soviet Union invades Poland Sep 27, 1939 Warsaw surrenders Apr 1, 1940 Hitler defeats France May 10, 1940 Germany attacks western Europe Jun 10, 1940 Italy attacks France Jun 22, 1940 France surrenders Sep 1, 1940 America's first committee formed Dec 7, 1941 Japan bombs Pearl Harbor Dec 8, 1941 US declares war on Japan Dec 11, 1941 Nazi Germany and it's axis powers declare war on the US Jul 10, 1943 US and British troops land in Sicily Sep 8, 1943 Badoglio government surrenders to the allies Mar 19, 1944 Germans occupy Hungary Jun 4, 1944 Allied troops liberate Rome Jun 6, 1944 British and US troops land on the Normandy beaches Oct 20, 1944 US troops land in the Philippines Apr 16, 1945 Soviets launch their final defense encircling Berlin Apr 30, 1945 Hitler commits suicide May 7, 1945 Germany surrenders to the western Allies May 9, 1945 Germany surrenders to the Soviets Aug 6, 1945 US drops atomic bomb on Hiroshima Sep 2, 1945 World War II ended