US-Turkey West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties soured after Turkey purchased the Russian S-400 missile defense system. The West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties deliveries were made on Friday. The US warned Turkey West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties to buy the West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties from Russia. The USA and Turkey are West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties allies in NATO - a defense West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties created to counter a West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties threat from Russia. The USA has the West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties military in NATO. Turkey has West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties established closer West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties with Russia. This has worried the USA. The U.S. warned Turkey of West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties sanctions if it installed the S-400 West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties . It also said Turkey would not be West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties of the USA's F-35 West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties jet programme. U.S. West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties say the Russian system is West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties with NATO systems and would risk the West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties of F-35 fighter jets. Turkey will not integrate the S-400 with NATO systems and says there is no West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties to NATO. Turkey said buying the S-400 did not mean it is seeking " West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties " in relations with the West alternatives biggest both economic equipment fighter first incompatible military not officials organization part recently relations security system threat ties .