S-400 missile system

Turkey had made a request to the US to buy 40 Lockheed Martin-made F-16 fighter jets and nearly 80 modernization kits for its existing warplanes
US lawmakers profoundly concerned over reports of Turkey’s potential F-16 purchase
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Washington says the S-400s pose a threat to its F-35 fighter jets
Erdogan defies US by planning to buy more Russian defence systems
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Turkey will propose only partially activating the S-400s in negotiations with US
Turkey will not turn back from Russian S-400s acquisition
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US slapped sanctions on NATO ally Turkey's Defence Industry Directorate last month following its acquisition of the S-400s
Turkey in talks with Russia on second S-400s consignment
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Turkish FM described the US sanctions as wrong both legally and politically
Turkey will not turn back on S-400s despite sanctions
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The acquisition of Russian S-400 missile defence systems might cost Turkey very dear in terms of its ties with the US
Erdogan criticises US sanctions on Turkey
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Russian S-400 defence systems
US ‘seriously concerned’ about Turkey's S-400 purchase
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Washington has threatened possible sanctions over Turkey's purchase of the Russian system
Russia hoping for new S-400 missile deal with Turkey
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'Acquisition of the S-400 fundamentally undermines the capabilities of the F-35'
US says Turkey cannot have both F-35 and S-400
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The S-400 agreement fanned concerns in the West that Turkey was moving closer to Russia
Erdogan strikes defiant posture but crisis looms with US over Russian missile system
Thomas Seibert
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Erdogan said Turkey still wanted to buy Patriot missile defence systems from Washington
Erdogan says Trump can waive sanctions over S-400 purchase
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Russian S-400 anti-aircraft missile launching system is displayed at the exposition field in Kubinka Patriot Park outside Moscow
US still plans to slap sanctions on Turkey
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Erdogan said he believed the dispute over the S-400s would be overcome without a problem
Turkey to receive Russian missile defence system in 10 days
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Erdogan said the delivery of the S-400 will start next month
Erdogan: We will not backtrack' on Russia missile deal
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Turkish Foreign Minister Mevlut Cavusoglu
Turkey shrugs off US sanctions over S-400 deal
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Ties between the NATO allies have been strained over Turkey's push to buy the system
Erdogan says Trump ties will resolve Russia missile tension
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