The First World War ended in 1918, World War 2 started in 1939, so there was 21 years between them.
1940
Germany
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
Germany invaded Poland
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 2 started in September in 1939 when the Nazis invaded Poland and violated the Versailles Treaty.
While Germany was a part of both the first and the second world wars they only started World War 2.
Adolf Hitler started world war two when crowned chancellor of germany and invaded country
Germany started both world war one AND world war two. Don't you just LoVe Germany? <sarcastically said> F that last guy. The first world war was started by Serbia and Austria-Hungary...