" George W. Bush has launched a revolution in American foreign policy. He has redefined how America engages the world, shedding the constraints that friends, allies, and international institutions impose on its freedom of action. He has insisted that an America unbound is a more secure America. How did a man once mocked for knowing little about the world come to be a foreign policy revolutionary? In America Unbound, Ivo H. Daalder and James M. Lindsay...