Air Marshal Jeetendra Mishra revealed that Pakistan deployed spies and sleeper cells within India to locate Russian-made S-400 missile systems during Operation Sindoor in 2025.
The S-400 'Sudarshan' system was critical in countering missile threats from Pakistan, which targeted Indian airbases including Adampur, Pathankot, Bathinda, and Udhampur in May 2025.
India has greenlit the acquisition of five additional S-400 systems, with the fifth unit from the original order expected to be delivered in November 2026.