how long did world war 2 last?

Answer 1

From 1939 until 1945.

Answer 2

I'm sorry, but Pearl Harbor Day was Dec 7th, 1941, so US involvement could not have started in 1940 because of Pearl Harbor.

I will also agree with someone else's response to a similar question that plans for the war had started much sooner since Hitler had taken power in 1933, and started setting it in motion soon after.

Answer 3

it all depends on from what contries perspective for the US it officially started 12/8/1940 with a declaration of war after pearl harbor. the war in Europe ended 11/11/1944, and in the pacific 2 days or so after the dropping of the second atomic bomb on japan. the treaty was signed by Vice Fleet Admiral (what would be comperable to a US Rear Fleet Admiral) of the Japanese navy, with General Douglas McArthur and Admiral Chester Nimitz present on the deck of the USS Missouri in Tokyo Bay
the reason it was the Vice Admiral was b/c the Supreme Admiral
was too embarassed to personally hand his combat sabre over to Admiral Nimitz.
for Europe it started in 1938 or so when the german's made the first push into the nuetral country of belgium and ended on11/11/1944

Answer 4

During March 1938 German troops had occupied Austria, incorporating it into the Reich. In September Hitler announced that the "oppression" of ethnic Germans living in Czechoslovakia was intolerable and that war was near. England and France met with Hitler (the Munich Pact) and compelled Czechoslovakia to cede its frontier districts to Germany in order to secure "peace in our time." Peace, however, was only an illusion. During March 1939 Hitler seized the rest of Czechoslovakia by force of arms and then turned his attention to Poland. Although Britain and France had guaranteed the integrity of Poland, Hitler and Josef Stalin, dictator of the Soviet Union, signed a secret, mutual nonaggression pact in August 1939. With the pact Stalin bought time to build up his strength at the expense of Britain and France, and Hitler gained a free hand to deal with Poland. When Hitler's army invaded Poland on 1 September 1939, World War II began.

While German forces overran western Poland, Soviet troops entered from the east to claim their portion of that country. France and Britain declared war on Germany and mobilized their forces. The subsequent period of deceptive inactivity, lasting until spring, became known as the Phony War. Nothing happened to indicate that World War II would differ significantly in style or tempo from World War I.

Aftermath and Reckoning

# Although hostilities came to an end in Sept., 1945, # a new world crisis caused by the postwar conflict between the USSR and the United States–the two chief powers to emerge from the war–made settlement difficult. By Mar., 1950, peace treaties had been signed with Italy, Romania, Hungary, Bulgaria, and Finland; in 1951, the Allies (except the USSR) signed a treaty with Japan, and, in 1955, Austria was restored to sovereignty. Germany, however, remained divided–first between the Western powers and the USSR, then (until 1990) into two German nations (see Germany).

Answer 5

1939 - 1945

Learn more and see the year by year events here:
http://www.euronet.nl/users/wilfried/ww2/ww2.htm

Answer 6

1,345 days