Book excerpt: This book is to date the first and only study on Pakistan's foreign policy decision making process. It discusses the how's and why's of its foreign policy as it developed in a particular fashion based on a certain self view generating a world view. Post 9/11 change requires a fundamental change in self image and world view based on that new self image that goes beyond the act of becoming U.S. ally in Afghanistan or abandoning the policy of supporting Taliban. The main topic of the study is identification of that change, its requirements and some basic suggestions as to how to go about it. The book traces the historical International and Domestic context of Pakistan's Post 9/11 Afghan Policy. It analyses the regional impact of the decision, the domestic debate that it generated and concludes with identifications of implications for changes in Pakistan, required for sustenance of its changed policy.