Today India and the U.S share a convergance of interests on many fronts. This has been mainly due to the rapid pace of changes in the Indo-Pacific region and the consequent shift in geo-political and geo-economic centre of gravity. This book traces the Indo -US defence relations from the past when their policies and other differences in world view became a mjor barrier in developing close military relationship to the present strategic partnership, this volume also gives out the challenges and way ahead to overcome them.