Russia plans to upgrade its S-400 Triumf air defence system, one of the world's most advanced surface-to-air missile systems. The upgrade will be based on lessons learned from the system's use in the Ukraine war, including experience in neutralizing threats such as American ATACMS missiles.visit here:https://vibrantnews24.com/ https://vibrantnews24.com/world/russia-plans-to-upgrade-the-S-400-triumph-lessons-from-the-ukraine-war-will-strengthen-Indias-air-defense-shield-keeping-an-eye-on-threats-from-pakistan-and-china