The state is the foundational unit of both political theory and international law. Its classic legal definition derives from Article 1 of the Montevideo Convention on the Rights and Duties of States (1933), which fixes four criteria of statehood: a permanent population, a defined territory, government, and the capacity to enter into relations with other states. Two competing theories explain how an entity actually becomes a state. The declaratory theory, embodied in Article 3 of the Montevideo Convention, holds that statehood is a question of objective fact independent of recognition by others. The constitutive theory, by contrast, treats recognition by existing states as the very act that creates legal personality. In practice the international system blends both: Kosovo, Taiwan, and Palestine each satisfy some Montevideo criteria yet face contested recognition, illustrating that political acceptance remains decisive.
Analytically the state is distinguished by sovereignty — the doctrine, traced to Jean Bodin's Les Six Livres de la République (1576) and the Peace of Westphalia (1648), that within its territory the state holds supreme authority subject to no superior. Max Weber's Politics as a Vocation (1919) added the enduring sociological definition: the state is the human community that successfully claims the monopoly of the legitimate use of physical force within a given territory. The state must be distinguished from three neighbours: the nation (a cultural-ethnic community), government (the transient agency that exercises state power), and society (the wider web of non-political associations). The state is permanent and abstract; the government that acts in its name is temporary and replaceable, a distinction the international law of state succession and continuity preserves through changes of regime.
States vary by structure and by ideological self-conception. The unitary state (United Kingdom, France, China) concentrates authority in the centre, while the federal state (India under Article 1 — "Union of States" — the United States, Germany) constitutionally divides power between centre and constituent units. The Chinese state describes itself in Article 1 of the PRC Constitution (1982) as a "socialist state under the people's democratic dictatorship led by the working class," fusing the Communist Party, the state apparatus, and the People's Liberation Army; this party-state model is a recurring contrast to the liberal-democratic separation of powers. In Indian constitutional law "the State" carries a wider technical meaning under Article 12, covering the government and Parliament of the Union, the legislatures and governments of States, and "all local or other authorities" against whom fundamental rights are enforceable, as expanded in Ajay Hasia v. Khalid Mujib (1981).
For the exam the state appears across multiple papers. In General Studies / IR, expect questions on the Montevideo criteria, declaratory versus constitutive recognition, Westphalian sovereignty, and the "failed state" and "deep state" debates. In Indian Polity, the Article 12 definition of "State" for writ jurisdiction is heavily tested, alongside the federal "Union of States" formula. In the China Political System paper, candidates must contrast the party-state with the Weberian and liberal models. The typical question angle asks you either to define statehood precisely, to distinguish state from nation and government, or to apply Article 12 to a specific body — so command both the legal text and the named authorities.
Example
In 2008 Kosovo declared independence and was recognised by over 100 states, yet because Serbia, Russia and China withheld recognition, it remained outside the UN — a live demonstration of the constitutive theory of statehood.
Frequently asked questions
Article 1 of the Montevideo Convention (1933) lists a permanent population, a defined territory, a government, and the capacity to enter into relations with other states. These remain the standard legal test for statehood in international law.