Fourth Military Region () - headquartered at Siem Reap, capital of Siem Reap Province, the MR 4 covered the Siem Reap, Kampong Thom, Preah Vihear, Oddar Meanchey, and Angkor Chum military sub-districts.
Phnom Penh Special Military Zone (PPSMZ, ) - headquartered at Phnom Penh, it covered the National Capital zone and its environs, the Udong Meanchey and Kandal military sub-districts.