The T-87 Cleanser internal security tank has left service with the HCS. The T-87 was an improved version of the very first HCS tank, the T-86, which was intended for secondary units and internal security operations though only a few 100 were ever built. For the last couple of years the remaining 30 have been used for training but they are now coming to the end of their lives and the HCS have decided to retire them to save money.
This leaves the HCS a three tank force (with the T-88++ on a gradual withdrawal programme), a dramatic reduction from the wide array of types operated by the HCS at the army's peak.