Munich Agreement

The Munich Agreement was signed in the early hours of 30 September 1938 by Adolf Hitler, Benito Mussolini, British Prime Minister Neville Chamberlain, and French Premier Édouard Daladier. It permitted Germany to annex the Sudetenland, the predominantly German-speaking border regions of Czechoslovakia, in exchange for Hitler's pledge that he had no further territorial demands in Europe.

Czechoslovakia, despite being the country whose territory was being partitioned, was not invited to the negotiations and was presented with the result as a fait accompli. The Soviet Union, which had a mutual assistance treaty with Czechoslovakia, was also excluded. German troops occupied the Sudetenland between 1 and 10 October 1938.

Chamberlain returned to London waving the joint Anglo-German declaration and announced "peace for our time." Within six months, in March 1939, Germany occupied the remaining Czech lands (creating the Protectorate of Bohemia and Moravia) and detached Slovakia as a client state, demonstrating that the agreement's guarantees were worthless. Britain and France subsequently issued security guarantees to Poland, and World War II began in September 1939.

The Munich Agreement became the canonical example of appeasement in international relations theory and diplomatic discourse. Phrases such as "another Munich" and the "Munich analogy" are routinely deployed by policymakers to argue against negotiating with aggressive states — invoked, for instance, by Anthony Eden during the 1956 Suez Crisis, by U.S. presidents during the Cold War, and in debates over responses to Russian actions in Ukraine.

Scholars including A.J.P. Taylor and more recent revisionists have debated whether Britain and France had realistic military alternatives in 1938, but the agreement remains widely cited as a cautionary tale about sacrificing a smaller state's sovereignty to preserve great-power peace. In Czech and Slovak memory it is often referred to as the Munich Betrayal (Mnichovská zrada).