Comparing: STB-1 vs. Centurion Mk. I

In the early 1960s, Mitsubishi started development of a new tank that complied with government requirements for armament and defense. The first two prototypes of the STB-1 were manufactured in September 1969 for trials. In 1970 the prototypes were shown to journalists and participated in a military parade.

Development of the Centurion started in 1943. The vehicle was designed as a "universal tank" to replace existing infantry and cruiser tanks. The Centurion was the first British vehicle that featured sloped armor plates. The tank entered service in 1947. A total of 100 vehicles of this series were manufactured from 1945 through 1946.