![turkish president recep tayyip erdogan l and russian president vladimir putin r photo reuters turkish president recep tayyip erdogan l and russian president vladimir putin r photo reuters](https://i.tribune.com.pk/media/images/1924833-download-1551944593/1924833-download-1551944593.png)
The United States, a long-standing NATO ally and supplier of much of Turkey's military equipment, has pressed Ankara to drop the S-400 deal, saying it is incompatible with its established weapon systems and is part of Russian efforts to muddy the waters in a key, volatile region.
"As for the S-400, the deal is done and it is out of the question to go backwards ... and perhaps after the S-400, we will move onto the S-500," Erdogan told Kanal 24 television.
The S-400 is a sophisticated anti-missile and anti-aircraft weapon system, similar to the US Patriot.
Erdogan also noted Washington's decision to withdraw trade privileges from Turkey, warning that "no one should try to make us toe the line with such measures."
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ