The Merkava is a series of main battle tanks used by the Israel Defense Forces and the backbone of the IDF's armored corps. The tank began development in 1970, and its first generation, the Merkava mark I, entered official service in 1979. Four main variants have been deployed. As of 2023, the Merkava mark IV is the latest version. The Merkava was first used extensively in the 1982 Lebanon War. The name "Merkava" was derived from the IDF's initial development program name.
The tank was developed in the Merkava and Armored Combat Vehicles Division of the Israeli Ministry of Defense, and most of its parts are manufactured in Israel. The Merkava was designed to provide maximum protection for its crew, and therefore its front armor was fortified and the engine placed in the front part of the tank, unlike most other tanks.
The Merkava Mark III was introduced in December 1989 and was in production until 2003. As of 2016, the Merkava III is by far the most numerous tank in frontline IDF service. Compared to the Merkava II, it has upgrades to the drivetrain, powertrain, armament, and electronic systems. The most prominent addition was the incorporation of the locally developed IMI 120 mm gun. This gun and a larger 1,200 horsepower (890 kW) diesel engine raised the total weight of the tank to 65 tonnes (143,000 lb), but the larger engine raised the maximum cruising speed to 60 km/h (37 mph).
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