International Relations

International Relations (IR) is the systematic study of relations among sovereign states and the wider community of actors—international organisations, multinational corporations, non-governmental organisations, and transnational movements—that shape world politics. As a formal academic discipline it dates to 1919, when the Woodrow Wilson Chair was established at Aberystwyth University in the aftermath of the First World War, founded on the hope of preventing future conflict. Its normative and legal scaffolding rests on the Peace of Westphalia (1648), which entrenched the principle of sovereign territorial statehood, and on the Charter of the United Nations (1945), whose Article 2(1) affirms the sovereign equality of members, Article 2(4) prohibits the threat or use of force, and Article 51 preserves the inherent right of self-defence. The discipline draws on diplomacy, international law (the 1961 Vienna Convention on Diplomatic Relations), strategic studies, and international political economy.

IR is organised around competing theoretical traditions. Realism, articulated by Hans Morgenthau in Politics Among Nations (1948) and refined into structural neorealism by Kenneth Waltz (Theory of International Politics, 1979), treats states as rational, self-interested actors pursuing power and security under anarchy. Liberalism and neoliberal institutionalism (Robert Keohane, Joseph Nye) emphasise interdependence, international institutions, and cooperation. Constructivism, advanced by Alexander Wendt ("Anarchy Is What States Make of It," 1992), foregrounds identities, norms, and ideas. Marxist and dependency approaches, world-systems theory (Immanuel Wallerstein), and post-colonial critiques interrogate structural inequality between the global North and South. These paradigms explain core concepts: balance of power, deterrence, collective security, the security dilemma, soft power, and hegemonic stability.

In contemporary practice IR encompasses multilateral diplomacy through the UN Security Council, the WTO, the IMF and World Bank (the Bretton Woods institutions of 1944), regional blocs such as the EU, ASEAN, and the African Union, and groupings like BRICS, the G20, and the Quad. As of 2026 the field is dominated by intensifying US–China strategic competition, the war in Ukraine and the recalibration of NATO, supply-chain "de-risking," climate governance under the Paris Agreement (2015), and contests over the reform of the UN Security Council and the post-1945 liberal order. For India, IR frames doctrines of non-alignment, "strategic autonomy," Panchsheel (1954), and Look East/Act East policy, alongside membership of the SCO, BRICS, and engagement with the Indo-Pacific.

For the exam, IR is central to the General Studies paper on international relations (UPSC GS-II), current affairs, and optional papers in Political Science and Public Administration; for the FSOT it underpins the world history and government sections, and for CSS and BCS it forms dedicated International Relations papers. Typical question angles ask candidates to apply realist or liberal theory to a current crisis, evaluate India's bilateral and multilateral commitments, analyse the relevance of non-alignment, or assess the efficacy of UN institutions and the prospects of Security Council reform. Examiners reward precise citation of treaties, doctrines, and dated summits.