US sanctions Turkey over purchase of Russian S-400 missile system
US has imposed sanctions on Turkey over its purchase of the Russian S-400 missile system last year, saying that the surface-to-air missile system is incompatible with NATO technology. We hope other countries take note of this action and "avoid further acquisitions of Russian equipment", US added. In 2018, India signed a $5.43 billion deal to procure five S-400 missile system. 