It is assumed that all students already have a good working knowledge of public international law. On this assumption, the purpose of this course is two-fold: first, to refresh knowledge of public international law, its general principles and key doctrines; second, to focus attention upon recent developments and topical issues affecting these general principles. Themes discussed may include: the history and function of international law, sources, statehood, international responsibility, treatment of aliens, jurisdiction and immunities, human rights, UN system and targeted sanctions, use of force and international terrorism, environmental and cyber security.