This wide-ranging and original book brings together four different bodies of knowledge to examine the pratice of conscientious objection: historical and philosophical analyses of conscientious objection as a critique of compulsory military service and militarization; feminist, LGBT and queer analyses of conscientious objection as a critique of patriarchy, sexism, and heterosexism; activist and academic analyses of conscientious objection as a social movement and individual act of resistance; legal analyses of the status of conscientious objection in international and national law.