After several rounds of negotiation, and despite their own treaties with Czechoslovakia, Britain and France agreed to give in to Hitler’s demand, as long as he agreed not to seize any further European territory. Hitler did sign an agreement to that effect, promising no further invasions
The leaders of Britain, France, Italy, and Germany held a conference in Munich on September 29–30, 1938. In what became known as the Munich Pact, they agreed to the German annexation of the Sudetenland in exchange for a pledge of peace from Hitler.
Europe was still recovering from World War I: many of the countries of Europe were adjusting to new parliamentary governments, and the newly created League of Nations was a new force in international affairs.