Development of the Type 90 Japanese Main Battle Tank (MBT) commenced in 1976. It was intended to replace the Type 61 medium tanks in service with Japanese Ground Self-Defense Forces (JGSDF). The new tank was developed by Mitsubishi Heavy Industries in cooperation with German Krauss-Maffei and MaK tank manufacturers. Consequently the tank has a number of external similarities with German Leopard 2. First prototype of the Type 90 was built in 1982. This MBT was officially adopted by the JGSDF in 1989 and the initial deliveries commenced in 1990. A full-scale production began in 1992. Production is now complete. The Type 90 is among the best MBTs in the world. Furthermore for a period of time it was the most expensive production MBT. Original Japanese army requirement was for 600 of these tanks, however only about 340 were built due to high unit price. This tank was never exported, as at the time Japan laws did not allow export of military equipment. The Type 90 has an all-welded hull and turret. Its composite armor has superior resistance qualities. Half of the ammunition is stored in the turret bustle with blow-out panels. The Type 90 has a laser warning receiver, which can automatically trigger smoke grenade dischargers. Such protection system allows to reduce the chances of being hit by anti-tank missiles with semi-automatic laser guidance. The tank is fitted with NBC protection and automatic fire suppression systems. This MBT is armed with German Rheinmetall Rh-M-120 120 mm smoothbore gun, which was produced in Japan under license by Japan Steel Works. It fires HEAT-MP and APFSDS-T rounds, but is also compatible with all standard NATO 120 mm tank ammunition. This Type 90 tank is fitted with am autoloader. This feature permitted a three-man crew, as the loader was no longer needed. At the time presence of an autoloader was unusual feature. Before only Soviet tanks were fitted with automatic ammunition loading systems. Autoloaders were not used on contemporary Western tanks. However autoloaders of the Cold War era Soviet main battle tanks had one common problem as the ready-to-use ammunition was stored in the main compartment, rather than a separate compartment. In this case once the armor is penetrated it can trigger detonation of onboard ammunition. Japanese designers addressed this problem by relocating the autoloader in the turret bustle with blow-out panels. So ready-to-use ammunition is separated from the crew. Autoloader of the Type 90 tank holds 20 rounds, stored in the turret bustle that are ready to fire. The rest of ammunition is stored in front of the hull. The gun has to be depressed to 0 degrees to be loaded after each shot. Fire control system of the Type 90 is reportedly more advanced than those used on the French Lecle ... https://www.youtube.com/watch?v=e0l6qdK0zpQ