The S-400 Triumf (Russian: C-400 Триумф – Triumf; translation: Triumph; NATO reporting name: SA-21 Growler), previously known as the S-300 PMU-3, [4] is a mobile surface-to- air missile (SAM) system developed in the 1990s by Russia's NPO Almaz as an upgrade to the S-300 family of missiles. The S-400 was approved for service on 28 April 2007 and the first battalion of the systems assumed combat duty on 6 August 2007. The system is complemented by its successor, the S-500. S-400 , known as Sudarshan in India, named after mythological Sudarshan Chakra, is among world's most advanced long-range air defence missile. The S-400 'Sudarshan Chakra', India’s long-range air defence system , gains new momentum with an Indian firm chosen to set up a dedicated MRO facility. Learn about its features, deployment, and strategic role. An overview of the advanced S-400 defence system including its range, speed, price capabilities, deployment, operators and significance for regional security.
