With the onset of World War II in 1939, Congress loosened the Neutrality Acts of 1930s but remained opposed to entering the European war. In 1940, the United States ranked 18th in terms of military power. The Neutrality Patrol had US destroyers fighting at sea, but no state of war had been declared by Congress. American public opinion remained isolationist. The 800,000-member America First Committee vehemently opposed any American intervention in the European conflict, even as the US sold military aid to the United Kingdom and the Soviet Union through the Lend-Lease program.