September 21, 1945 was a Friday.
It was a Saturday.
3816
2011 - 1945 = 66
It is a statistical analysis of the causes and outcomes of wars, based on virtually every war between two nations, from 1815 to 1945.
December 1941 to September 1945. (The USA tried to stay out of the war from September 1939 to December 1941).
December 1941 to august 1945 December 8, 1941 to September 2, 1945. About three and three-quarter years.
For US citizens, WW2 was between December 7, 1941 and September 2, 1945.
From December 7, 1941 to September 2, 1945
Poland- September, 1939 Germany- September, 1939 France- September, 1939 New Zealand- September, 1939 The United Kingdom- September, 1939 Newfoundland- September, 1939 South Africa- September, 1939 Canada- September, 1939 Czechoslovakia- October, 1939 Norway- April, 1940 Belgium- May, 1940 Hungary- June, 1940 Romania- June, 1940 Luxembourg- May, 1940 Netherlands- May, 1940 Free France- June, 1940 Italy- June, 1940 Greece- October, 1940 Yugoslavia- October, 1940 Japan- 1941 Bulgaria- March, 1941 The Soviet Union- June, 1941 Panama- December, 1941 Costa Rica- December, 1941 Dominican Republic- December,1941 El Salvador- December, 1941 Haiti- December, 1941 Hondurus- December, 1941 Nicaraqua- December, 1941 The United States- December, 1941 China- December, 1941 Guetemala- December, 1941 Cuba- December, 1941 The Philippines- December, 1941 Mexico- May, 1942 Brazil- August, 1942 Ethiopia- December, 1942 Iraq- January, 1943 Bolivia- April, 1943 Colombia- July, 1943 Iran- September, 1943 Liberia- January, 1944 Peru- February, 1944 Romania- August, 1944 Bulgaria- September, 1944 San Marino- September, 1944 Albania- October, 1944 Ecaudor- February, 1945 Paraquey- February, 1945 uraquey- February, 1945 Venezuela- February, 1945 Turkey- " " Egypt- " " Lebanon- " " Syria- " " Saudi Arabia- " " Argentina- " " Chile- " "
7 December 1941 until 2 September 1945
December 1941 - 2 September 1945 Hope that helps you
The Big 4 usually means the US, Britain, USSR and either France or China, depending on your viewpoint. Other combatants on the "Allied" side (with their dates of entering the war) included: Polish 1 September 1939 Canada 10 September 1939 Australia 3 September 1939 India 3 September 1939 Yugoslavia 6 April 1941 Greece 28 October 1940 Netherlands 10 May 1940 Belgium 10 May 1940 New Zealand 3 September 1939 Union of South Africa 3 September 1939 Norway 8 April 1940 Denmark April 1940 Luxembourg 10 May 1940 Czechoslovakia 16 December 1941 Korea 10 December 1941 Ethiopia 14 December 1942 Brazil 22 August 1942 Mexico 22 May 1942 Cuba 9 December 1941 The Philippines 8 December 1941 Mongolia 8 December 1941 Nepal 4 September 1939 Panama 7 December 1941 Costa Rica 8 December 1941 Dominican Republic 8 December 1941 El Salvador 8 December 1941 Haiti 8 December 1941 Honduras 8 December 1941 Nicaragua 8 December 1941 Guatemala 9 December 1941 Iraq 16 January 1943 Colombia 26 July 1943 Iran 9 September 1943 Liberia 27 January 1944 Peru 12 February 1944 Romania 25 August 1944 Bulgaria 8 September 1944 Hungary 20 January 1945 Ecuador 2 February 1945 Paraguay 7February 1945 Uruguay 15 February 1945 Venezuela 15 February 1945 Turkey 23 February 1945 Egypt 24 February 1945 Syria 26 February 1945 Lebanon 27 February 1945 Saudi Arabia 1 March 1945 Finland 3March 1945 Argentina 27 March 1945 Chile 11 April 1945 (at war only with Japan)
September 1939. The US joined the war in December 1941.
1939-1945. U.S. involvement was from the time of the attack on Pearl Harbor, December 7, 1941 until the end of the war in 1945.
WW2 became GLOBAL on December 7, 1941 and ended on September 2, 1945.
Just under forty-five months, from December 8, 1941 to September 1, 1945.