The designations Al-Khalid and MBT-2000 refer to the Pakistani and Chinese variants of a modern main battle tank developed during the 1990s by China and Pakistan. The Al-Khalid has been in service with the Pakistan Army since 2001, while the MBT-2000 is built and marketed internationally by China and was recently trialed by the Peruvian Army for possible acquisition. Peru leased five VT-1A from China for trials in 2009. The Peruvian government has expressed interest in purchasing 80-120 units to complement the fleet of Soviet T-55 tanks in service with the Peruvian Army.