The Locarno Treaties, also known as the Pact of Locarno, were a series of treaties between Germany, France, Great Britain, Italy and Belgium designed to guarantee peace in Western Europe following World War I. The powers initialed the agreements in Locarno, Switzerland, on Oct. 16, 1925.
Representatives of the treating parties signed the documents officially on Dec. 1, 1925. The treaties stipulated that the borders fixed by the Treaty of Versailles, which had ended World War I, remain inviolable. Germany, Belgium and France agreed that they would never attack each other except in self-defense or in response to a request by the League of Nations. Any nation violating this agreement risked retaliation from the treaties' other signatories. The treaties ultimately helped Germany join the League of Nations and allowed the French to stop occupying the German Rhineland. However, the treaties did not work to end war in Western Europe over the long term.