In 1937, President Franklin Roosevelt delivered the "Quarantine Speech" in response to the growing aggression in Europe. In the speech, Roosevelt did not call for a declaration of war or announce an alliance with the Allied powers. Instead, he called for an end to America's isolationist policies and urged the U.S. to take a more active role in world affairs. Roosevelt recognized the threat posed by the aggressive actions of certain European powers and argued that the U.S. needed to take steps to prevent the spread of this aggression. The speech was a pivotal moment in shifting public opinion towards greater involvement in international affairs, and it set the stage for America's eventual entry into World War II.