Tanks in the Japanese Army Army in World War II. Intended to be a heavier, lengthened, more powerful version of Japan's sophisticated Type 4 Chi-To medium tank, in performance it was designed to surpass the US M4 Sherman medium tanks being fielded by the Allied forces. It was to be powered by a "Kawasaki Type 98 800 HP engine Ha-9-IIb" detuned for the tank to 550 hp. Originally, the tank was to be fitted with the same Type 5 75 mm tank gun used on the Type 4 Chi-To. Eventually, an 88 mm gun (based on the Type 99 88 mm AA Gun) was planned
Tanks of the U.S. in the Cold War its derivative M46 Patton were credited with almost half of the North Korean T-34s destroyed by US tanks. Being underpowered and unreliable in the mountainous Korean terrain, all Pershings were withdrawn from Korea in 1951, and replaced with M4 Shermans and M46 Pattons. The M103 was manufactured at the Detroit Arsenal Tank Plant and the first units were accepted in 1957. The M103 was designed to counter Soviet heavies. Its long-ranged 120 mm cannon was designed to hit enemy tanks at extreme distances, but it was never used in combat. Of the 300 M103s built, most went to the Marines.