2K12 Kub (RS-SA-6 Gainful)

The 2K12 Kub (NATO reporting name SA-6 Gainful) is a mobile, medium-range, low-to-medium altitude surface-to-air missile system. It was designed to protect ground forces from air attacks and uses a semi-active radar homing missile mounted on a tracked chassis.

Developed in the late 1950s by OKB-134 to provide mobile, tactical air defense for Soviet armored divisions, the 2K12 Kub officially entered service in 1967 after overcoming complex integration challenges with its ramjet-powered missiles. The system achieved its greatest combat success during the 1973 Yom Kippur War, where Egyptian and Syrian forces utilized it to inflict heavy losses on the Israeli Air Force, which lacked effective electronic countermeasures against its unique radar frequencies at the time. It saw further action in conflicts across the Middle East, the Balkans, and Africa, and remains in limited service today with various nations, often upgraded with modern electronics or integrated with newer missile types.