According to reports, Turkish President Erdogan said that Russia will produce the S-500 together with Turkey. The S-500 is a long-range anti-ballistic missile system with a planned range of 500-600 km. This comes after Turkey’s controversial purchase of the Russian S-400 missile defense system. This purchase has taken a toll on relations between Turkey and the US since Turkey is also part of the F-35 Lightning II Joint Strike Fighter programme. The US has even gone as far as opposing shipment of the F-35 jets if Turkey goes through with the S-400 purchase.