International relations theory holds significant importance in politics as it provides frameworks for understanding how states interact on the global stage. These theories, including realism, liberalism, and constructivism, help policymakers interpret international events and anticipate outcomes. By examining concepts such as power dynamics, institutional cooperation, and cultural influences, leaders can craft foreign policies that align with their countries' strategic interests. Additionally, these theories shed light on global issues like conflict resolution and economic development, reinforcing how academic insights can inform practical political decision-making.