What was the significance of the adoption of the Westphalian system?

The Peace of Westphalia, signed in 1648 and ending the Thirty Years’ War, formed a special system of international relations.

What was its significance? First, the Westphalian system was viewed by many as the ideal of relations between states.

Second, the principle of state sovereignty of the countries of the world was confirmed.

Third, the equality of rights of states. And lastly, the foundations of diplomacy in relations between states, and the principle of the rule of law in resolving controversial issues were laid.