ZSU-23-4 Shilka

The ZSU-23-4 Shilka was developed in the Soviet Union as a self-propelled anti-aircraft gun able to protect armored formations from low-flying aircraft and helicopters. Entering service in the 1960s, it combined four 23 mm autocannons with onboard radar on a tracked chassis, a major step beyond towed guns that depended entirely on external cueing and visual tracking.

Shilka mounts four 23 mm 2A7 autocannons and an RPK-2 radar system, allowing it to detect, track, and engage targets while moving with mechanized units. Its high rate of fire made it dangerous to aircraft operating at low altitude, especially before widespread precision standoff weapons. Against modern threats it is short-ranged and vulnerable, but upgrades and drone-defense use keep the basic concept relevant.

The Shilka served in many Soviet-aligned armies and saw combat across the Middle East, Afghanistan, and later conflicts. Its tactical value was suppressing low-level air attack and forcing pilots away from effective attack profiles. In modern wars, Shilkas are often used against drones, infantry, and light vehicles when air targets are scarce. The weapon remains recognizable because it shaped Cold War mobile short-range air defense doctrine.