Reported here:
'Footage from Turkey's Anadolu Agency showed two pilots parachuting out of the jet before it crashed. The fate of the pilots remains unknown but broadcast media has shown footage of Russian helicopters above the crash site. ... The plane went down in area known by Turks as "Turkmen Mountain" in northern Syria near the Turkish border, Haberturk said.'
The entangling foreign alliance in this case is NATO, and Turkey shouldn't be in it.
What hath the Dardanelles to do with the English Channel?