+The [Treaty of Westphalia](/wiki/treaty_of_westphalia), a series of peace accords signed in 1648, ended both the devastating [Thirty Years War](/wiki/thirty_years_war) and the Eighty Years' War. It fundamentally established principles of state [sovereignty](/wiki/sovereignty) and non-interference, forever shaping modern international relations and the European political order.
+## See also
+- [European History](/wiki/european_history)
+- [International Law](/wiki/international_law)
+- [Nation State](/wiki/nation_state)
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