What were the two main causes of the war?

Answer 1

First of all, The main reason was because in World War 1, after the Germans lost the war, the allies decided to punish Germany and forced it to sign the Treaty of Versailles; the treaty stated that Germany could have only a small army, it must pay a fee each month for the reconstruction of Europe, and it must never harass or threaten a country. this, along with the effects of the great depression, forced Germany into a terrible economical state. When Hitler started rising to power, he started disobeying the rules and broke the treaty; the Germans agreed to this because they wanted revenge from the treaty or WWII.

The second reason was that Italy and Japan, both hungry for power, became allied with Germany, so the war was also in the pacific, and Italy and Egypt. or else it would just have been a big war, not world war.