http://www.defenseone.com/ideas/2018/02/us-drifting-toward-war-nato-ally/145979/

Putin’s unchecked courtship of Erdoğan increases the risks associated with any military response to Assad’s war crimes, continued Turkish aggression, or Iranian entrenchment in Syria. The U.S. and NATO should take Turkey to task for any actions that are detrimental to NATO’s mutual defense goals.  Concurrently, Turkey must be lured away from Russia before it is too late. The delicate carrot-and-stick balance that must be struck with Turkey to solidify its fidelity to NATO interests requires highly-skilled diplomacy. The ineptitude of the current Administration means Congress must take the lead. It must do so immediately, lest we end up in an international armed conflict that we are ill-equipped to handle.