In an increasingly interdependent world, international law and international organisations are playing an important part in regulating human activity, both within and between states. In this subject you will examine this trend, and its implications for the theory and practice of state sovereignty and international relations in a rapidly changing world. The trend is then considered with reference to developments in international law and organisations since 1945. Special attention is directed to the role of international organisations in conflict resolution, the laws of war, humanitarian law, international environmental law and the law of the sea, international health regulations, and refugee law. How effective is international law at regulating state and human behaviour? What role do international organisations play in the development and enforcement of international laws and norms? And how could international law and organisations more effectively regulate the excesses of sovereign states?