World War I led to World War II in the fact that after the war, all the countries signed a Treaty called the Treaty of Versailles in which Germany had to give up some land, they had to demilitarize, they had to take full blame for the war, and pay reperations to the Allied countires. From this Germany wanted revenge on the Allied countries.
It didn't. It helped start World War 2.
The Mexican Americans contribute during world war 2 because of a program called Bracero and that's how they contribute during world war 2.
World War 2 contributed to the end of imperialism.
WW1 did not contribute to WW2
they found out they always do.
Antisemitism did not contribute to outbreak of World War 2. Hitler invaded Poland in order to seize land, not in order to hunt for Jews.
It brought the end of the war.