Q. National interest is an essentially contested concept, differently interpreted by Realist, Liberal, and Constructivist scholars. Elaborate.
(15 Marks)
How to Approach
Establish why national interest is essentially contested, then show how each school interprets it differently. Show precisely where and why they disagree, not just describe each perspective separately.
Answer
National interest is the cornerstone of foreign policy. Every state formulates its international behaviour primarily to protect and advance it. Yet despite its centrality, the concept resists a single agreed definition, invoked across the ideological spectrum to justify contradictory policies, from military intervention to strict non-alignment.
No clear boundary exists between what is genuinely national and what merely reflects ruling elite interests dressed in national language. Because the term carries connotations of legitimacy and sovereignty, leaders across the ideological spectrum invoke it to justify widely differing decisions, making democratic debate over national interest permanent rather than resolvable.
The Realist Interpretation
For Morgenthau, national interest is defined in terms of power. States pursue survival, security and relative power maximisation as permanent objectives. Interest is objective and fixed by the anarchic structure of international politics. Russia's actions in Ukraine and the US-China rivalry both reflect this logic: strategic survival consistently overrides normative considerations.
The Liberal Interpretation
Liberals expand national interest beyond security to include welfare, trade and cooperation. V.V. Dyke's non-vital objectives — justice, prosperity, peace, ideology and prestige — capture this broader conception. States have an interest in building rules-based institutions because interdependence makes conflict costly. India's active participation in climate negotiations reflects this expanding understanding.
The Constructivist Interpretation
Alexander Wendt argues national interest is not objectively given but socially constructed through a state's identity and interactions with others. Japan's pacifist national interest, shaped by post-war constitutional norms rather than material power, demonstrates how identity independently shapes what states pursue.
Realists fix national interest in power, liberals expand it through cooperation, constructivists argue it is socially produced. This contestation is not a weakness; it reflects genuine disagreement about what states are and what they want, making national interest a permanently debated rather than settled concept.
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