This treaty ended WW1 and led to angry countries who would become allies during WW2.
Hitler and Mussolini took over their countries with complete control. They were able to do this due to the vulnerability of the people in their countries.
Blitzkrieg / Start of WW1
Leaders were displaying fascism all over the world which would be a main cause for WW2. Fascism is extreme nationalism and racism.
The Axis and Allie powers were then formed which would be the sides for WW2.
The invasion of Poland on September 1, 1939 started the beginning of WW2. Hitler used a type of war called Lightning War where planes would bomb and then tanks would come in resulting in swift victories.
On December 7 1941 Japan attacked Pearl Harbor to destroy Americas Pacific fleet which would pull America into the war.