The negotiations at Münster were, if you will, somewhat like a CSCE, a "Conference on Security and Co-operation in Europe". At the same time, the Peace of Westphalia also paved the way for our federal system: the rights of German territorial princes were strengthened, thereby making the German regional states independent players that could help shape European politics.
In the Peace of Westphalia, all the European partners committed to guaranteeing security in Europe. We also experienced something similar in 1990 when Germany was reunified: without European integration, German unity certainly would not have come about. 2.