How did the European nation great Britain and France deal with totalitarian dictators?

Great Britain and France initially adopted a policy of appeasement towards totalitarian dictators, particularly in the 1930s, hoping to avoid another war by making concessions. This approach was exemplified by the Munich Agreement of 1938, where they allowed Hitler to annex parts of Czechoslovakia. However, as aggressive actions continued, particularly with Germany's invasion of Poland in 1939, both nations shifted to a policy of military confrontation, leading to their involvement in World War II. Ultimately, their early attempts at diplomacy failed to contain the expansionist ambitions of dictators like Hitler and Mussolini.