In Chapter 3, I explained that international law has no definition of ‘peace’. The same is true of ‘security’, a concept that is essentially left to other disciplines such as international relations, security and conflict studies. International relations scholars examine the causes and consequences of conflict with feminists turning the lens to the forms of insecurity experienced by women in conflict because they are women.1 International law has sought to regulate conflict, restricting both legal recourse to war (the jus ad bellum) and the means and methods through which war may be waged (the jus in bello, international humanitarian law (IHL)). These international legal regimes have been scrutinised by feminist scholars to reveal the discipline’s biases and blind spots and how they uphold the structures of power.2 This chapter considers women and security within the framework of international law.