What is in news : The S-400 air defence systems deal, for which deliveries are scheduled to begin in a few months, was on schedule said Russia

Details :

• The S-400 Triumf is a mobile, surface-to-air missile system (SAM) designed by Russia.It is the most dangerous operationally deployed modern long-range SAM (MLR SAM) in the world, considered much ahead of the US-developed Terminal High Altitude Area Defense system (THAAD).

Issues associated :

• Countering America’s Adversaries through Sanctions Act (CAATSA)‘s core objective is to counter Iran, Russia and North Korea through punitive measures.
• Enacted in 2017.
• Includes sanctions against countries that engage in significant transactions with Russia’s defence and intelligence sectors.