Turkey makes deal to buy Russian-made S-400 air defense system

Turkey and Russia have finalized a contract for the acquisition and deployment of the Russian S-400 long-range air and anti-missile defense system on Turkish soil.
The contract involves the acquisition of one S-400 system with an option to purchase a second system.
The delivery of the S-400 system was scheduled for the first quarter of 2020.
The S-400 system would be operated by Turkish personnel and would be supported by a locally developed identification friend or foe, or IFF, system.
On Dec. 25, President Recep Tayyip Erdogan said Turkey would borrow the loan in Russian rubles instead of U.S. dollars so the debt would be less.
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