The war is generally accepted to have begun on 1 September 1939, with the invasion of Poland Slovakia
The German invasion of Poland started World War Two.
Germany's invasion of Poland.
Archduke Ferdinand
When the Germans violated British neutrality to reach France, Britian declared war on Germany.
Because Allied soldiers and armoured vehicles could finally challenge the German armies face to face.
Invasion of poland
invasion of poland
POLAND
Hitler's invasion of Poland in 1939.
Germany's invasion of Poland.
Romania did not want war; the Soviet and Hungarian invasion triggered the war.
Poland, on 1 September 1939
German invasion of Poland 01 Sept 1939
North Korea's invasion into South Korea triggered the war.
The invasion of Poland by the Russians was scarcely even noticed. What grabbed all the headlines was the invasion on the 1st September 1939 by the Germans. On the 3rd Britain & France declared war.
It is Canada...
Here is the main summary of why World War 2 happened from an article. World War Two began in September 1939 when Britain and France declared war on Germany following Germany's invasion of Poland. Although the outbreak of war was triggered by Germany's invasion of Poland, the causes of the war are more complex.