The Munich Agreement was an agreement between France, Italy, Nazi Germany and Britain. After Germany threatened an invasion of the Sudetenland in Czechoslovakia, the British and French prime ministers tried to get Hitler to agree not to use his military in the future in return for taking the land, including the Rhineland and others. After Hitler agreed, most people thought the agreement was a success, but Hitler invaded the rest of Czechoslovakia in 1939. Later that year, the Second World War started.