Question

why did World War II begin only 21 years after World War I ended?

Answer 1

Answer:

The major causes of world war 2 were numerous things, It includes the treaty of Versailles, Economic depression, failure of appeasement, and also the fail of the league of nations

Explanation:

Germany was forced to sign the treaty of Versailles, or they would be attacked, Germany had no say in the treaty of Versailles. Germany joining the war brought several other countries into the war, and made it into a full World War.

This isn't the greatest answer let me know if you need a more elaborate answer

#