Answer:
The way Great Britain and France tried to assure peace after the first world war is by forming the League of Nations. The League of Nations was an international organization founded after WWI to prevent another world war. The council consisted of four permanent members: Great Britain, France, Japan, and Italy. The Soviet Union was originally part of the League of Nations but was expelled in 1939 for invading Finland. The countries and nations that partook in the league agreed to certain terms, which included a focus on reducing weapons as well as finding a set way to settle problems. The main reason that the League of Nations failed was that the United States didn't agree to be a part of it; America sided with the allies during WWI and provided a massive amount of support, but after the war was over, they retreated to their own land and reinforced their policy of isolationism. Another important factor that made the League of Nations impotent and unimportant was because its system was ineffective and it did not have the power to enforce its decisions.