The Authorization for Use of Military Force Against Terrorists or "AUMF" was made law on 14 September 2001, to authorize the use of United States Armed Forces against those responsible for the attacks on 11 September 2001.It authorized the President to use all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on 11 September 2001, or harbored such organizations or persons, to prevent any future acts of international terrorism against the United States by such nations, organizations or individuals. Congress declares this is intended to constitute specific statutory authorization within the meaning of section 5 of the War Powers Resolution of 1973. The George W. Bush administration defined the following objectives in the War on Terror:. How many days after the 9/11 attacks was the AUMF made into law?