"Here you have the question about the validity of NATO itself."
I don't think NATO is going anywhere soon. Who knows.
See also:
Don’t Believe the Hype. Russia Is Losing in the Middle East—and Around the World. "Putin Moves to Heighten Russia’s Role After Suleimani Killing "Blowback: Iran abandons nuclear limits after US killing The blowback over the U.S. killing of a top Iranian general is mounting"" https://investorshub.advfn.com/boards/read_msg.aspx?message_id=153757187