the first chief of staff of pak army was
Chief of Army Staff (Pakistan) In 1969, the title of the army command was changed from "Commander-in-Chief" to "Chief of Staff" with President Yahya Khan acting as Commander-in-Chief and General A.H. Khan as Chief of Staff.:contents[12] On 20 March 1972, the post was renamed as "Chief of Army Staff" (COAS) with Lieutenant-General Tikka Khan elevated to four star rank to be appointed as army's first chief of army staff.:62[13]
Kargil War Some analysts believe that the blueprint of attack was reactivated soon after Pervez Musharraf was appointed chief of army staff in October 1998.[45][56] After the war, Nawaz Sharif, Prime Minister of Pakistan during the Kargil conflict, claimed that he was unaware of the plans, and that he first learned about the situation when he received an urgent phone call from Atal Bihari Vajpayee, his counterpart in India.[57] Sharif attributed the plan to Musharraf and "just two or three of his cronies",[58] a view shared by some Pakistani writers who have stated that only four generals, including Musharraf, knew of the plan.[53][59] Musharraf, however, asserted that Sharif had been briefed on the Kargil operation 15 days ahead of Vajpayee's journey to Lahore on 20 February.[60]