The Merkava IV is a main battle tank developed by the Israeli Defense Forces (IDF). It is the latest and most advanced version of the Merkava series of tanks, which have been in service since the late 1970s. This
From Wikipedia
The Merkava is a series of main battle tanks used by the Israel Defense Forces (IDF) which are the backbone of the IDF's Armored Corps. Current iterations of this tank are considered broadly equivalent to the capabilities of the M1 Abrams, Leopard 2 and the Challenger 2. The current Merkava uses the same MTU EuroPowerPack powerplant as a number of other tanks.