Political elites use deeply engrained beliefs regarding soldiers and citizenship to mobilize support for war and limit dissent. To analyze how the US peace movement has responded to this hegemony, we qualitatively and quantitatively analyze statements from up to 15 US peace movement organizations over three wars (the Gulf War, 9/11 and the War in Afghanistan, and the Iraq War). We find that PMOs altered their constructions of soldiering and citizenship in response to social history, elite counter-framing, shifts in the political and cultural climates, and to their organizational identities. Battling the mythology of being anti-soldier during the Vietnam era, PMOs have increasingly expressed support for soldiers while developing a discourse portraying pro-war elites as betraying soldiers. Mobilization late in a protest cycle, opening political opportunities and the public?s weariness of nationalism encouraged PMOs to challenge American identity during the Gulf War. In contrast, mobilization early in a protest cycle, rapid political closure and a hyper-patriotic, security conscious climate all encouraged PMOs to harness nationalism in the aftermath of 9/11. Promoting peace became the duty of American citizens. Splits within the UN and extensive transnational mobilization encouraged PMOs to strengthen international hegemony during the Iraq War. Our study highlights how the lessons of past contention combine with structural and culture changes to shape movement framing strategies. [ABSTRACT FROM AUTHOR]