The "Theory of International Politics" explores how countries interact on the global stage. It examines the behavior of states, the influence of international organizations, and the impact of non-state actors. Key concepts include power dynamics, security, and diplomacy, which help explain why nations cooperate or conflict. One influential framework within this theory is Realism, which emphasizes the role of power and national interest. In contrast, Liberalism focuses on cooperation and the importance of international institutions. Understanding these theories helps clarify the complexities of global relations and the factors that shape international decisions.