The Law of War and Peace offers a cutting-edge analysis of the relationship between law, armed conflict, gender and peace. This book, which is the first of two volumes, focuses on the interplay between international law and gendered experiences of armed conflict. It provides an in-depth analysis of the key debates on collective security, unilateral force, the laws governing conflict, terrorism and international criminal law. While much of the current scholarship has centered on the UN Security Council's Resolutions on Women, Peace and Security, this two-volume work seeks to move understandings beyond the framework established by WPS. It does this through providing a critical and intersectional approach to gender and conflict which is mindful of transnational feminist and queer perspectives.