Relations between the USA and Turkey have soured the purchase by Turkey of a Russian missile defense system. Turkey received the deliveries of the Russian-made S-400 missile defense system on Friday. The USA had warned Turkey not to buy defense from Russia. The USA and Turkey are allies in NATO - a defense organization created in 1949 to counter any military aggression by Russia. NATO consists of 29 North American and European . The USA has the military among the states. In recent years, Turkey has been establishing ties with Russia. This has caused security for the USA and other NATO member countries.
The U.S. has warned Turkey it will face sanctions if it goes and installs the S-400 defense system. It also said Turkey would not be allowed to play any in a program to manufacture the USA's high-tech F-35 fighter jets. The U.S. wants Turkey to buy its Patriot missile defense system . U.S. officials argue the Russian system would be with NATO systems and would expose F-35 fighter to possible Russian subterfuge. Turkey said the S-400 would not be integrated into NATO systems and would not pose a to the NATO alliance. Turkey's said the to purchase the S-400 system did not mean it is seeking "alternatives" in its with the West.