timeline of WW2 By anasantosj08 1940 Hitler invades Denmark and Norway Jun 11, 1940 Italy enters war on side of Axis powers Jun 22, 1940 France signs armistice with Germany Dec 8, 1941 Britain and US declare war on Japan 1942 Battle of Stalingrad/ Allies push into N. Africa 1945 Mussolini captured and executed 1945 Germany unconditionally surrenders Aug 6, 1945 Atomic bomb dropped on Hiroshima