sentences:  The first published reference after the 9/11 attacks to the terror-fighting doctrine appeared September 30 in an op-ed by political scientist Neal Coates.This policy was used to justify the invasion of Afghanistan in October 2001, and has since been applied to American military action against Al Qaeda camps in North-West Pakistan.Bush addressed the cadets at the U.S. Military Academy (West Point) on June 1, 2002, and made clear the role pre-emptive war would play in the future of American foreign policy and national defense