This course provides a comprehensive introduction to international criminal law, equipping learners with knowledge of its foundations, sources, and practical applications. Students will explore the principles of state jurisdiction, the purposes of international criminal law, and the historical development of its institutions, including the International Criminal Court (ICC). The course covers major international crimes, including war crimes, genocide, crimes against humanity, and the crime of aggression, with an emphasis on legal definitions, case examples, and individual responsibility. Participants will also examine legal defences, immunities, and the mechanisms by which international law holds individuals accountable for violations. By studying the ICC and other historical institutions, learners will understand how international criminal law functions to protect human rights and promote accountability. Practical examples, historical cases, and analysis of state and individual responsibilities are provided to help learners critically engage with international legal issues. By the end of the course, participants will have a thorough understanding of the sources, principles, and enforcement mechanisms of international criminal law, preparing them for further study, legal practice, or roles in international justice and human rights advocacy.