The United States and Turkey remain at odds over Ankara's purchase of a Russian S-400 air and missile defense system. The time to resolve American and Turkish concerns about this issue is running out, and the stakes for diplomatic failure will have repercussions for the bilateral relationship, the Russian role in the region, and could impact NATO. In this week's episode, Aaron discusses the S-400 issue, potential American sanctions, and the potential denial of the F-35 to the Turkish Air Force.

Related links:

1. The Russian Missile That Could End The U.S.-Turkish Alliance: http://bit.ly/2UJxVhK
2. Turkey risks US ire over Russia air defence deal: https://on.ft.com/2Y9MT2y
3. 'Not serious': Turkey dismisses US pressure on Patriot missile deal as deadline looms:
http://bit.ly/2Fr0SK6
4. U.S. may soon pause preparations for delivering F-35s to Turkey: https://reut.rs/2UPIhN8