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.
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