The Munich Agreement, signed on September 30, 1938, led to the annexation of Czechoslovakia's Sudetenland by Nazi Germany. This agreement was part of a failed attempt at appeasement, where Britain and France conceded to Adolf Hitler's demands in hopes of preventing a larger conflict. The decision, made without the Czechoslovak government's involvement, was widely criticized afterward, as it emboldened Hitler and revealed the weaknesses of European powers in confronting Nazi aggression. The annexation marked a significant step toward the eventual outbreak of World War II, as it demonstrated the futility of appeasement and highlighted the increasing threat posed by Nazi Germany.