In the first book to systematically explore the linkages between war and emergency response, Hoffman and Weiss focus on the profound impact of new wars with non-state actors. The authors trace the evolution of the international humanitarian system from its inception in the 1860s through the current challenges cast by recent U.S. military action in Afghanistan and Iraq. By bringing historical perspective to bear on the mechanics of war and humanitarian action, Sword & Salve provides an essential analytical framework for grasping the nature of crises and how aid agencies can respond strategically rather than reactively to change. Students will find it a powerful tool for understanding the roles of state and non-state actors in international relations, as well as the panopoly of means and ends encompassed by contemporary humanitarianisms.