The Chanak Crisis, also called the Chanak Affair and the Chanak Incident, in September 1922 was the threatened attack by Turkish troops on British and French troops stationed near Çanakkale (Chanak) to guard the Dardanelles neutral zone. The handling of the crisis by the British cabinet was a major contributor to the downfall of British Prime Minister David Lloyd George. In addition, it was the occasion of the Canadian government's first assertion of diplomatic independence from the United Kingdom. The crisis was a major factor for the Statute of Westminster 1931, which determined that the Dominions of the British Commonwealth would have independence in foreign policy.