Trump is ‘fully prepared’ to take military action against Turkey if needed, Mike Pompeo says
(CNBC)
And that's from the Secretary of State who should know better. Turkey is a member nation of NATO. Article 5 of the NATO treaty provides for collective defense: an attack on one member nation is an attack on all. If Trump, in his "great and unmatched wisdom," attacks Turkey he is attacking all of the member states of NATO and all of NATO would be treaty-bound to respond.