2018 Macedonian referendum is one example of the contrarian. It was invalid as the turnout was mere 36.89% (most were probably Albanians). And (I think) in non other country that is a NATO member now, there was a referendum.

For a broader perspective: NATO was created to “keep the Soviet Union out, the Americans in, and the Germans down.” (from the horse's mouth)

https://www.nato.int/cps/en/natohq/declassified_137930.htm

EDIT: For even broader perspective: Who rules East Europe commands the Heartland; who rules the Heartland commands the World-Island; who rules the World-Island commands the world. — Mackinder, Democratic Ideals and Reality, p. 150

https://en.m.wikipedia.org/wiki/The_Geographical_Pivot_of_Hi...