NATO-member Turkey Buys Four Advanced Russian S-400 Missile Divisions

In the $2.5 billion deal Turkey will be receiving a system that cannot be integrated into NATO's military architecture

Russia's S-400 air defense missile systems at the Hmeimim airbase in the Syrian province of Latakia.

Turkey will pay 45 percent of the cost up front with Russia providing loans to cover the remaining 55 percent, Chemezov said. Moscow expected to begin the first deliveries in March 2020, he said.

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The deal has caused concern in the West because Turkey is a member of NATO but the Russian missile system cannot be integrated into NATO's military architecture. Relations between Moscow and the Western military alliance are fraught.

Chemezov told Kommersant that Turkey was the first NATO member state to acquire the advanced S-400 missile system.

He said the Russian and Turkish finance ministries had already completed talks on financing the deal and that the final documents just needed to be approved.

Turkey's President Recep Tayyip Erdogan, right, shakes hands with Russia's President Vladimir Putin, left, following their joint news statement after their meeting at the Presidential Palace in Ankara, Monday, Dec. 11, 2017. The two men met Monday evening to discuss developments in Syria and the Middle East, as well as bilateral relations, according to the Turkish President's office.
Alexei Druzhinin/AP