General Discussion

If a NATO member country declares war on a non NATO country there is no obligation on the part of NATO to join the conflict, although some countries may voluntarily choose to do so.
NATO is a defensive alliance, not an overall alliance.
Overall alliances would oblige participation although carve outs might occur.
Non aggression pacts forbid countries from attacking each other but without obligation to assist if one is attacked.

NATO countries are not obligated to heed trumpass and hegsdeath double double talk talk.