Peace of Westphalia

1648 European settlement

The Peace of Westphalia refers to two treaties signed in 1648 that ended the Thirty Years' War in Europe.

The settlement established principles of state sovereignty and non-interference in domestic affairs that became foundational to modern international relations.

When scholars invoke Westphalia, they usually mean this concept of sovereign nation-states rather than the treaties themselves: The Westphalian order is being challenged by globalization.

Opposites
diplomatic resolution vs. military conquest

Peace of Westphaliaunconditional surrender

Yielding without any terms

conquest · Pax Romana · Treaty of Versailles · total war · Norman Conquest

state sovereignty vs. universal authority

Peace of WestphaliaHoly Roman Empire

Medieval Germanic political entity

papal supremacy · imperial authority · theocracy · Christendom · world government

war-ending vs. war-initiating events

Peace of WestphaliaThirty Years' War

1618-1648 European religious conflict

declaration of war · casus belli · invasion · World War I · conflagration

Family

peace

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