Turkey is in the process of constructing a site for a Russian missile system despite warnings from the United States to not buy the platform, according to a source with firsthand knowledge of an intelligence report covering the subject.
The S-400 system is believed to have a larger range than the American-made THAAD missile system and is estimated to cost significantly less.
Turkey is slated to receive the S-400 next year and is expected to have the system ready for war by 2020.