International law began as a discipline concerned with the goal of peace, and has become the basis for organizing, managing and regulating relations between states in the maintenance of international peace and security. International law underpins a number of strategies and institutions focusing on different and sometimes contradictory, but related, priorities in the global quest for peace, including the concepts of state sovereignty, non-intervention and self-determination, the processes of collective security, humanitarian intervention and responsibility to protect (R2P), and the treaty-based systems to prevent and prosecute genocide, protect human rights and pursue arms control and disarmament.