While addressing a virtually press conference on December 21, Nikolay R Kudashev, Russian Envoy to India, on US imposing sanctions..
S-400 missile system
Type of Mobile surface-to-air missile/anti-ballistic missile system
The S-400 Triumf, previously known as the S-300PMU-3, is an anti-aircraft weapon system developed in the 1990s by Russia's Almaz Central Design Bureau as an upgrade of the S-300 family. It has been in service with the Russian Armed Forces since 2007.