Locarno Treaties

Locarno Treaties

From left to right, Gustav Stresemann, Austen Chamberlain and Aristide Briand during the Locarno negotiations
Type	Multilateral treaty
Signed	1 December 1925 (1925-12-01)
Location	London, England, UK
Effective	14 September 1926 (1926-09-14)
Condition	Germany's entry into the League of Nations

Paris Peace Conference
League of Nations Covenant of the League of Nations Members Organisation Minority Treaties Little Treaty of Versailles Mandates
Treaty of Versailles "War Guilt" clause Reparations Dawes Plan Hague conference on reparations Young Plan Lausanne Conference Locarno Treaties Possible cause of World War II International Opium Convention
Treaty of Saint-Germain-en-Laye Treaty of Saint-Germain-en-Laye
Treaty of Neuilly-sur-Seine Treaty of Neuilly-sur-Seine
Treaty of Trianon Treaty of Trianon Millerand letter
Treaty of Sèvres Partition of the Ottoman Empire Conference of London (1920) San Remo conference Turkish National Movement Turkish War of Independence Treaty of Lausanne
Others American Commission to Negotiate Peace Commission of Responsibilities The Inquiry
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The Locarno Treaties were seven post-World War I agreements negotiated between Germany, France, Great Britain, Belgium, Italy, Poland and Czechoslovakia in late 1925. In the main treaty, the five western European nations pledged to guarantee the inviolability of the borders between Germany and France and Germany and Belgium as defined in the Treaty of Versailles. They also promised to observe the demilitarized zone of the German Rhineland and to resolve differences peacefully under the auspices of the League of Nations. In the additional arbitration treaties with Poland and Czechoslovakia, Germany agreed to the peaceful settlement of disputes, but there was notably no guarantee of its eastern border, leaving the path open for Germany to attempt to revise the Versailles Treaty and regain territory it had lost in the east under its terms.

The Locarno Treaties significantly improved the political climate of western Europe from 1925 to 1930 and fostered expectations for continued peaceful settlements which were often referred to as the "spirit of Locarno". The most notable result of the treaties was Germany's acceptance into the League of Nations in 1926.

The treaties effectively went out of force on 7 March 1936 when troops of Nazi Germany entered the demilitarized Rhineland and the other treaty signatories failed to respond.