But you're retro-attributing 'peace in Europe' to organisations that didn't have any substantive existence until the mid-1970s.
NATO was formed in 1949 and has more relevance to preventing war in Western Europe than any subsequent organisation. By the time the EU was formed the Berlin Wall had fallen!
The EC&SC, EEC and EU could exist because of peace in Europe.
If it was only about NATO, wouldn't it be super easy for one country to just leave NATO and act in bad faith? It's harder to leave when your economies are dependent on each other.
Tough I am not that knowledgable about history of EU so it's very probably you are right and I am making fool of myself
NATO was founded to keep the external peace, i.e., keep out the Russians. The EU and its predecessors was founded to keep the internal peace, i.e., stop the Germans and the French from going to war.
The EC&SC was political from the beginning. The idea was to intertwine the economies so much that war becomes a lose-lose game. So the economic integration was always a means to a political end.
NATO was formed in 1949 and has more relevance to preventing war in Western Europe than any subsequent organisation. By the time the EU was formed the Berlin Wall had fallen!
The EC&SC, EEC and EU could exist because of peace in Europe.