World What Is the S-400? The Russian Missile System in Turkey That Irks the Pentagon July 12, 2019July 13, 2019Benjamin Mueller and Thomas Gibbons-NeffComments Off on What Is the S-400? The Russian Missile System in Turkey That Irks the Pentagon Turkey’s purchase of the S-400 missile defense system could give Russian technicians access to technology in U.S. warplanes that Turkey wants to buy.
