Drawing on previous research, it is argued that the political opportunity structure for the peace movement, a contender in the foreign policy arena, is much more limited than it is for social movements working for changes in domestic policies. The political opportunity structure for the peace movement is outlined, focusing on two of its formal aspects: the interest aggregation structure & the policy-making structure. It is concluded that the peace movement should expend more energy on efforts to democratize the process of foreign policy making if it is to be more effective. Adapted from the source document.