Why did Hitler start ww2

To win the war and rule all over the world

Why did Adolf Hitler start World War II? Hitler had an overriding ambition for territorial expansion, which was largely driven by his desire to reunify the German peoples and his pursuit of Lebensraum, “living space” that would enable Germans to become economically self-sufficient and militarily secure.

Explanation:

hope this helps ;)

the roman empire began to fall

the answer to your question is

the treaty of hopewell