Fourth S-400 Squadron To Arrive In India This Week, Deployment Likely Along Western Border

Key points

• Fourth S-400 Squadron To Arrive In India This Week, Deployment Likely Along Western Border Reported By, Last Updated: May 18, 2026, 20:59 IST As per sources, the fourth S-400 squadron will be deployed to counter threats along India’s western front.
• The three S-400 squadrons already delivered are currently operational and were used during Operation Sindoor to neutralise enemy aircraft and missiles.
• (File image/Reuters) The fourth squadron of the Russian-origin S-400 air defence missile system is set to arrive in India by the end of this week, sources told CNN-News18. The delivery, originally expected well before May 2026, was delayed due to multiple factors, including the Russia-Ukraine conflict.
• The fifth and final squadron under the 2018 contract for five S-400 units is further expected to be delivered by the end of this year.
• As per sources, the fourth S-400 squadron will be deployed to counter threats along India’s western front.