September 1, 1939.
Probably right when they started using poison gas because they already knew about poison gas from World War 2
World War 2 was started in 1939
World War 1 started in 1914 and ended in 1918, World War 2 started in 1939 and ended in 1945
1939
Pearl harbor was a part of world war 2
1940
the world war 2 started on september 1st 1939 till september 2nd 1945
Germany started world war 2 when they invaded poland
In world war 1,germany started the war,but in world war 2,japan started it and usa ended the war
world war 1 started July 28th 1914 and world war 2 started 3rd September 1939
The German Invasion of Poland started World War 2.
World War Two started in August the 14th 1914 when Hitler invaded Polanddo your 5th grade HW
Probably right when they started using poison gas because they already knew about poison gas from World War 2
World War 2 officially started on 1 September 1939 when German troops invaded Poland. Austria and Czechoslovakia had been annexed by Germany before that date.
It was on 15 February 1942. For more information go to: wikipedia.org
WW2 began in 1939 and ended in 1945:)
Adolf Hitler started world war two when crowned chancellor of germany and invaded country