Indonesia continues to field large numbers of light tanks. The oldest of these, the AMX-13/75 and the PT-76, operated by the Army and Marine Corps respectively, were originally acquired in the 1960s. Despite having been upgraded throughout their career to help them retain at least some form of combat efficiency, both types now lag far behind in firepower, armour protection and fire-control systems and are scheduled for replacement. While the Indonesian Marine Corps intends to replace all of its PT-76s with BMP-3 IFVs, the Indonesian Army selected the Turkish Kaplan MT medium tank to replace its ageing AMX-13s. In Indonesia, the Kaplan is known as the Harimau (meaning Tiger).