Public opinion in postconflict societies toward international missions is widely believed to be important. We offer a theory that local satisfaction critically depends on an individual’s perception of whether the mission is furthering the wartime political agenda of his or her social group. To test this theory and competing hypotheses, we examine Kosovo Albanian satisfaction with the United Nations Mission in Kosovo (UNMIK). We use data from seventeen different representative surveys conducted in Kosovo from 2002 to 2007 as well as focus group and other primary and secondary sources. Consistent with our theory, we find that aggregate satisfaction over time reflected UNMIK’s growing acceptance of Kosovo’s independence and individuals with more radical views tended to be less satisfied with UNMIK. Our analysis implies that missions can achieve greater local satisfaction by doing what is possible to be responsive to, or at a minimum recognize, the wartime political agendas of the key social groups.