Our nation's armed forces are undergoing a transformation initiated by the end of the cold war. This transformation has both political and military dimensions. This publication, "The Impact of Doctrine on Air Force Role and Missions," takes a historical look at the role of doctrine in the past in Chapter 1 and concludes that doctrine will continue to play an important role. Chapter 2 studies the history of significant roles and missions reviews with an eye towards the durability of decisions made in these reviews and an understanding of institutional barriers to change. Chapter 3 covers our national policy in the post-Cold War period and provides a stepping stone to Chapter 4. It is in Chapter 4 that the technological advances brought about by the cold war, doctrine, and national policy are combined with a strategy and then applied to the new world situation. This section concludes that there are tremendous advantages available to the United States government in attacking the leadership of states inimical to US policy. The research conducted represents a review of both historical and contemporary works, with a focus on the idea that the Air Force should change and now is a good time for change.