S-125M Pechora-M (RS-SA-3B Goa)

The S-125M Pechora-M is a modernized, mobile, low-to-medium altitude surface-to-air missile system designed to intercept aircraft and cruise missiles. This variant features improved engagement range, multi-channel capability, and enhanced electronic counter-countermeasures.

Developed by the Soviet Union's Almaz Design Bureau to counter low-altitude aircraft that could evade the S-75 system, the upgraded S-125M Pechora-M variant entered service in the early 1970s utilizing the improved 5V27 series missiles. The system saw extensive combat deployment globally, most notably during the Yom Kippur War, the Iran-Iraq War, and the 1999 NATO bombing of Yugoslavia, where a Yugoslav S-125 battery famously shot down a U.S. F-117 Nighthawk stealth fighter. Though legacy technology, the Pechora-M remains in active service with dozens of nations worldwide, kept viable through various domestic modernization programs that integrate digital electronics and mobile chassis.