The goal of President Franklin Roosevelt's foreign policy focused on moving the United States from isolation to intervention. With crisis growing in Europe and Asia, Roosevelt realized that America needed to intervene. After the onset of the Second World War, Roosevelt campaigned for a strengthened American international presence. He helped lift the Neutrality Acts ban on arms and supplied needed weapons to Britain and France. Roosevelt agreed to the 'destroyers-for-bases' deal, which provided naval vessels in return for the right to build American bases on British-owned land. He also navigated the Lend-Lease Act through Congress, which loaned arms to American allies. Roosevelt structured the Atlantic Charter, which was essentially a proclamation of a wartime alliance with Britain and steered the repeal of the Navigation Acts through Congress. He also froze Japanese assets in America while curbing trade with the empire. When the Japanese attacked Pearl Harbor on December 7, 1941, Roosevelt officially entered the United States into war, completing the transition from isolation to intervention.