Russian S-400 Triumph medium-range and long-range surface-to-air missile systems drive during the Victory Day parade, marking the 71st anniversary of the victory over Nazi Germany in World War Two, at Red Square in Moscow, Russia, May 9, 2016.  REUTERS/Grigory Dukor

  • Turkey says it has finalized a deal to buy Russia’s advanced S-400 missile-defense system.
  • Ankara also says it wants to work with NATO countries on defense projects.
  • NATO leaders appear to be sending warnings to Turkey over the purchase and potential deployment of the weapon system.

Throughout the summer and fall, Turkey moved ahead with plans to buy Russia’s advanced S-400 anti-missile defense system.

The purchase concerned NATO members and underscored the contentious relationship between Ankara and the West, but Turkey said this week that it had been completed.

“It is finished. The S-400 missiles have been bought. The rest is just details now,” Turkish Defense Minister Nurettin Canikli said this weekend.

As a NATO member, Turkey would typically buy weapons interoperable with the defense alliance’s weapons systems, but Ankara sought out new options after several NATO countries declined to renew their deployments of Patriot missile-defense systems in Turkey, leaving only a handful there.

Turkish President Recep Tayyip Erdogan has said he pursued the S-400 because the West denied him a comparable system. He has also expressed frustration with the EU over its response to the attempted coup against him in summer 2016 and accused the bloc of “messing us about” on issues like visas and Syria migrants.

Turkish President Tayyip Erdogan meets with Russia's President VladimirÊPutin at the Presidential Palace in Ankara, Turkey, September 28, 2017. Kayhan Ozer/Presidential Palace/Handout via REUTERS

Ankara’s plans to buy the missile system were “a clear sign that Turkey is disappointed in the US and Europe,” an analyst at a Moscow-based think tank said this summer. In September, Read More Here