This title develops a coherent theory of nonviolent political action in the context of Western political theory. From Mahatma Gandhi and Martin Luther King to toppled communist regimes in Eastern Europe and pro-democracy movements in Serbia, Georgia and Ukraine, nonviolent action has played a significant role in achieving social and political change in the last century. Ian Atack identifies the contribution of nonviolence to political theory through connecting central characteristics of nonviolent action to fundamental debates about the role of power and violence in politics. This in turn provides a platform for going beyond historical and strategic accounts of nonviolence to a deeper understanding of its transformative potential. Key features: explores the philosophical presuppositions behind nonviolent political action; examines the tensions between nonviolence and pacifism in international politics; uses Gramsci and Foucault to critically analyse consent as the basis of political power; and, distinguishes between two forms of nonviolence, deriving from political theory and the role of the state