9.1 and 9.2 were about World War 1.
9.3 is mainly about the time between World War 1 and World War 2.
We call this period (1919 - 1939) "the Interbellum". ("inter" = between, "bellum" = war)
You will learn how democracy was
challenged when
economic crises hit Europe. Several countries turned away from democracy and started their own political experiments, with devastating effects:
- Communism in Russia
- Fascism in Italy and Spain
- National-Socialism in Germany.
These new (dictatorial) ideologies would lead Europe to a new World War.