

The first designated MBT was the British Chieftain tank, which during its development in the 1950s was re-designed as an MBT: "Chieftain, which until then had been called Medium Gun Tank No 2, was renamed the Main Battle Tank".


Cold War-era development of more powerful engines, better suspension systems and lighter composite armor allowed for the design of a tank that had the firepower of a super-heavy tank, the armor protection of a heavy tank, and the mobility of a light tank, in a package with the weight of a medium tank. A main battle tank ( MBT), also known as a battle tank or universal tank, is a tank that fills the role of armor-protected direct fire and maneuver in many modern armies.
