France and Great Britain did everything in their power to prevent another war. To do so, they were willing to give in to Hitler's demands.
Reasons for this appeasement policy:
- World War One had been devastating
- There was an economic world crisis
- They were democracies. People don't want wars
- Hitler recovered the German economy. Many people in France and Britain wanted to follow his example.
- The US declared a policy of isolationism (America First) and would probably not join another war.