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Foreign Policy Theories Actors Cases

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Foreign policy theories reveal how state and non-state actors make decisions under uncertainty — and why the same crisis can produce wildly different responses.

Rational Actor ModelConstructivismRealismLiberalism

Theory Briefing

  • Foreign policy theory maps how actors — states, institutions, individuals — shape international outcomes through competing frameworks.
  • Case studies ground abstract models in real decisions, showing where rational-actor assumptions break down under pressure.
  • Understanding these theories helps predict and explain why nations cooperate, defect, or escalate in moments of global tension.