International Relations (IR) is the study of how countries interact with one another, focusing on the roles of states, international organizations, and non-state actors. It encompasses various aspects such as diplomacy, conflict resolution, and trade relations, aiming to understand the complexities of global governance and cooperation. The field of IR examines theories and practices that shape international policies and relationships. Key topics include sovereignty, national security, and human rights, which influence how nations collaborate or confront each other on the world stage.