India has received the fourth squadron of the Russian-made S-400 Triumf air defence system, marking a significant enhancement of the country’s long-range air defence capabilities. The delivery is part of the ₹35,000-crore defence agreement signed with Russia in 2018 for five S-400 squadrons.
The S-400, often referred to as a key component of India’s “Sudarshan Chakra” air defence network, is designed to detect, track, and engage a wide range of aerial threats, including combat aircraft, drones, cruise missiles, and ballistic missiles at long distances.
According to reports, the fourth squadron has begun arriving through the sea route and will be deployed after the complete system is delivered and integrated. Defence officials expect the fifth and final squadron to arrive in the coming months.
The S-400 system gained significant attention for its role in strengthening India’s air defence posture and is considered one of the most capable missile defence systems currently in operation globally. The latest delivery further strengthens India’s layered defence architecture amid evolving regional security challenges.
