1 September 1939- September 2, 1945 By historyfreak11 Sep 1, 1939 Japan joins in World War II Jun 10, 1940 Italy declares war on Britain and France Jul 10, 1940 Battle of Britain begins Sep 13, 1940 Italians invade Egypt Sep 16, 1940 U.S. Military Conscription Bill Passed Oct 28, 1940 Italy invades Greece Nov 5, 1940 Roosevelt re-elected as U.S. president Jun 14, 1941 U.S. freezes German & Italian assets in America Jul 14, 1941 British occupy Syria Jul 26, 1941 Roosevelt freezes Japanese assets in U.S. & supends relations Dec 8, 1941 U.S. and Britain declare War on Japan Aug 6, 1945 First Atomic Bomb dropped, on Hiroshima, Japan Aug 9, 1945 Second Atomic Bomb dropped, on Nagasaki, Japan Aug 14, 1945 Japanese agree to unconditional surrender Sep 2, 1945 Japanese Sign the Surender Agreement; V-J ( Victory Over Japan) Day