Why National Interest Remains the North Star of Global Politics

The realist tradition, championed by scholars like Hans J. Morgenthau, posits that national interest is non-negotiable, acting as the bedrock of foreign policy. While the concept was once tethered strictly to territorial defense, its modern definition has expanded to encompass technological supremacy, energy security, and artificial intelligence. States operate on a simple calculus: cooperation is a tool used when goals align, while divergence inevitably leads to friction.

Contemporary power struggles illustrate this persistence. The U.S.-China rivalry over global hegemony and the Russia-Ukraine war—driven by Moscow’s strategic need for warm-water port access in Sevastopol—are stark reminders that sovereignty and survival still dictate state action. Even when global norms suggest otherwise, nations like India continue to navigate complex sanctions to secure energy supplies, while Pakistan engages in diplomatic mediation to protect its economy from the ripple effects of regional conflicts. Ultimately, history, ideology, and leadership are secondary to the cold, calculated requirements of the state. As long as nations exist, their specific, often competing, needs will define the limits of international cooperation.