On Sep. 1940, President Roosevelt signed a “Destroyers for Bases” agreement. Under the terms of the agreement, the United States gave the British more than 50 obsolete destroyers, in exchange for 99-year leases to territory in Newfoundland and the Caribbean, which would be used as U.S. air and naval bases. British Prime Minister Winston Churchill had originally requested that Roosevelt provide the destroyers as a gift, but the President knew that the American public and Congress would oppose such a deal. He therefore decided that a deal that gave the United States long-term access to British bases could be justified as essential to the security of the Western Hemisphere—thereby assuaging the concerns of the public and the U.S. military