War Powers Act of 1941
The War Powers Act of 1941, also known as the First War Powers Act, was an American emergency law that increased federal power during World War II. The act was signed into law by U.S. President Franklin D. Roosevelt on December 18, 1941, less than two weeks after the Japanese attack on Pearl Harbor. The act was similar to the Departmental Reorganization Act of 1917 as it was signed shortly before the U.S. engaged in a large war and increased the powers of the U.S. Executive Branch.