KV-2 , Soviet WW II heavy tank

The KV-2 was a Soviet heavy tank developed during World War II, designed specifically as a support artillery vehicle to destroy enemy fortifications.

It was created based on Soviet experience during the Winter War (1939–1940) against Finland, where the KV-1 tank—armed with a 76.2 mm gun—struggled to penetrate the concrete defenses of the Mannerheim Line. The "KV" designation was derived from the name of Soviet General Kliment Voroshilov.

It functioned more as a mobile "bunker buster" than a tank designed for direct combat against other tanks.

Key Specifications

• Main Armament: 152 mm M-10T howitzer.

• Secondary Armament: DP-27 machine gun.

• Weight: Approximately 52–53 tons.

• Maximum Speed: Approximately 28 km/h.

• Crew: 6 personnel (commander, gunner, radio operator, driver, and two loaders).

• Armor: Very thick turret armor (up to 110 mm), making it difficult for early German anti-tank weapons to penetrate.

Weaknesses and Operational History

• Massive Turret: The turret was extremely large and heavy, resulting in slow rotation speeds and making the tank unstable on uneven or sloped terrain.

• Poor Mobility: Its heavy weight placed a severe strain on the engine, making the vehicle prone to mechanical failure. • Production Numbers: Only about 334 units were produced between 1940 and 1941, and the majority were destroyed or abandoned during the initial German invasion in 1941.

The most famous battle involving the KV-2 tank was the Battle of Raseiniai in Lithuania, which took place from June 23–27, 1941, at the start of Operation Barbarossa (the German invasion of the Soviet Union).

This battle became legendary due to the actions of a single KV-2 tank (though some historical accounts suggest it may have been a KV-1E variant) that managed to halt the advance of an entire German military division.

On June 24, 1941, a KV-2 tank took up a strategic position in the middle of a road crossing marshy terrain near Raseiniai. This position cut off the sole supply line for *Kampfgruppe Raus* of the German 6th Panzer Division.

For nearly 48 hours, this solitary tank frustrated the German military for the following reasons:

• Impervious to Fire: The Germans attempted to destroy it using 50 mm anti-tank guns. The tank took eight direct hits, yet not a single shell could penetrate its 110 mm thick armor. The KV-2 returned fire and destroyed the German guns.

• Disrupting Logistics: The KV-2 destroyed a convoy of 12 German trucks carrying fuel and ammunition, isolating their frontline troops.

• German Guns Destroyed: When the Germans attempted to bring up an 8.8 cm Flak anti-aircraft gun (known as a heavy tank killer) from a distance of 730 meters, the KV-2 crew spotted it first and destroyed it immediately before it could fire.

The Germans were ultimately forced to resort to diversionary tactics. They sent a group of Panzer 35(t) light tanks to launch a frontal assault in order to distract the KV-2's crew.

While their attention was diverted, German combat engineers crept up from the rear, threw grenades or explosives into the turret hatch, and damaged the tank's tracks.

After the battle, German soldiers—impressed by the bravery of the six Soviet crew members—buried them with full military honors. This delaying action by the single KV-2 bought the Soviet Union valuable time to prepare its defenses for Leningrad.