I mean, I haven't seen any rumor of war between the EU and Switzerland, or Turkey, or the United Kingdom, or really any other of its neighbors other than Russia.
That seems to be deviating quite a lot from the concept of the existence of EU causing wars, as you suggested in the message I answered. By a few decades for North Cyprus (or 100+ years, depending from your definition of that conflict) a few centuries in the case of North Ireland.
Ukraine did not control Crimea, Donetsk and Lugansk for almost a decade. The north cyprus / north ireland situation existed before the war, which does look idiotic to me presently.