International Relations

There’s no world government, yet states mostly keep the peace. Why?

  • Explain anarchy in IR
  • Compare realist and liberal theories
  • Apply them to a current issue

International Relations

Inside a country, the state keeps order. Between countries there’s no higher authority — just 190+ sovereign states. That condition has a name: anarchy.

Definition: Anarchy (IR)

In international relations, anarchy means the absence of a supreme global authority — not chaos. Realists say it drives states to seek power and security; liberals say institutions and trade can tame it.

Key points

  • Realism: states seek security/power; expect rivalry, alliances, arms races.
  • Liberalism: democracy, trade and institutions (UN, EU) make cooperation rational.
  • Constructivism: ideas and identities shape interests — enemies can become friends.
  • All three illuminate: none explains everything alone.
The EU experiment

France and Germany fought three wars in 70 years — then bound their coal and steel industries together. Economic interdependence made war materially harder: liberalism in action.

Practice

How would a realist and a liberal explain the UN differently?
Power vs cooperation.

Realist: the UN reflects great-power interests and can’t override them. Liberal: it lowers the costs of cooperation and builds norms that restrain conflict.

What does ‘anarchy’ mean in IR?
No world government.

The absence of a supreme authority above states — states must ultimately rely on themselves.

Key takeaways
  • IR starts from anarchy: no world government.
  • Realism stresses power and security; liberalism stresses institutions and trade.
  • Constructivism adds ideas and identity.
  • Use theories as lenses, not religions.