Ankara Turns to Moscow: A Pivot in Turkish History

Turkey's decision to risk a rupture with the United States -- and NATO -- in order to purchase the S-400 missile defense system represents a monumental departure from the country's contentious, centuries-old relationship with Russia. In this video, Beyer Family Fellow Dr. Soner Cagaptay recounts Turkey's long history of conflict with its northern neighbor and explains the factors that may have led President Recep Tayyip Erdogan to break with the past.