: 309–311 [3] The Afghan and Iranian immigration to Pakistan and the Afghan Army's military raids in Chaman prompted the Army GHQ to form and raise the military formations to guard its western borders in 1984.: 64 [5] The XII Corps was raised with its HQ in Quetta Cantonment as Lt-Gen. K.K.

[4][6] Its military engagement has been limited to the Balochistan conflict, which it mainly tackles through the Frontier Corps (paramilitary) and local police department.

[8] Similar to the V Corps in Sindh, the XII Corps has an area of expertise in desert warfare, and oversees security operations together with the local law enforcement, mechanized divisions guarding the nation's desert and dune ranges, and paramilitary to ensure the national defenses of the Pakistan.

: 311 [3] Together with the air force units, naval bases, marines camps, paramilitaries, army reserves, and air forces ranges, the XII Corps forms and leads the major regional formation in Pakistan's security spectrum known as the Southern Command.

[4] The XII Corps has receives reinforcement in its missions on war on terror and is based on the known information publicly available: