This course provides an introduction to International Criminal Law (“ICL”). Essential topics include the nature, scope, and purpose of ICL, and the broader goal of ending impunity for genocide, crimes against humanity, war crimes and the crime of aggression. Students will learn how the definition of each crime came about and has evolved to facilitate investigation and prosecution in times of crisis and conflict. The course will also familiarize students with ICL history, beginning with its origins in the attempt to prosecute the German Kaiser after WWI and continuing through the Nuremberg Trials, the UN War Crimes Commission, establishment of UN ad hoc Tribunals in the 1990s, and finally the creation of the International Criminal Court (ICC).