How did appeasement lead to WW2?

Appeasement, particularly by Britain and France towards Nazi Germany in the 1930s, allowed Hitler to expand German territory and military power unchecked. The Munich Agreement of 1938, which permitted the annexation of the Sudetenland, exemplified this policy, as Western powers believed it would prevent a larger conflict. However, this strategy emboldened Hitler, leading to further aggression, including the invasion of Poland in 1939, which ultimately triggered World War II. The failure to confront fascist expansionism highlighted the inadequacies of appeasement and its catastrophic consequences.