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  1. International relations | Definition, Theory, History, Examples ...

    Nov 21, 2025 · International relations, the study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies, political …

  2. International Relations Portal | Britannica

    International relations is the study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies, political parties, and …

  3. International relations - Structures, Institutions, Analysis | Britannica

    Nov 21, 2025 · International relations - Structures, Institutions, Analysis: Since the 1970s the study of international relations has been marked by a renewed debate about the relationship …

  4. Definition, Theories, Examples, Problems, & Facts - Britannica

    Oct 18, 2025 · Realism, a set of related theories of international relations that emphasizes the role of the state, national interest, and power in world politics. Founded by E.H. Carr and Hans …

  5. Diplomacy | Definition, Meaning, Types, & Examples | Britannica

    Oct 19, 2025 · Over the long term, diplomacy strives to build an international order conducive to the nonviolent resolution of disputes and expanded cooperation between states.

  6. Security dilemma | International Relations, Conflict Resolution ...

    Not only did it become one of the most extensively used textbooks in the United States and Britain—it continued to be republished in new editions over the next half century—it also was …

  7. Constructivism | international relations | Britannica

    In the late 20th century the study of international relations was increasingly influenced by constructivism. According to this approach, the behaviour of humans is determined by their …

  8. International law | Definition, History, Characteristics, Examples ...

    Oct 11, 2025 · The range of subjects and actors directly concerned with international law has widened considerably, moving beyond the classical questions of war, peace, and diplomacy to …

  9. Foreign policy | Definition, Objectives, & Facts | Britannica

    Nov 22, 2025 · international relations, the study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies, political …

  10. Democratic peace | Political Science, International Relations ...

    Whereas the latter claim is controversial, the claim that democratic states do not fight each other is widely regarded as true by scholars and practitioners of international relations.