The Anglo-American treaty, also known as the Palestine Mandate Convention, permitted the US to delay any unilateral British action to terminate the mandate. The earlier proclamation of the independence of Syria and Lebanon had said "the independence and sovereignty of Syria and Lebanon will not affect the juridical situation as it results from the Mandate Act. Indeed, this situation could be changed only with the agreement of the Council of the League of Nations, with the consent of the Government of the United States, a signatory of the Franco-American Convention of 4 April 1924".