This course provides a current and exciting overview of the law of environment, peacekeeping and state reconstruction. Its focus is on states which have been damaged by conflict e.g. Afghanistan and Iraq, failed states which lack even the most basic facilities and services e.g. South Sudan, and states rich in resources but with weak or ineffective government e.g. Western Sahara, Liberia. The course provides an overview of international environmental obligations, considers international humanitarian law, and reviews the establishment and development of peacekeeping missions. Students are invited to undertake in-depth research on a country or region of their choice. This course will suit students who have studied, worked or travelled internationally, veterans, and anyone with an interest in international affairs.