General Agha Muhammad Yahaya khan was born on 04 February, 1917 . He was commissioned in army in 15 July, 1939. General Yahaya Khan, during the course of his military career attended a number of professional courses at various military institutions. He was employed on various command, staff and instructional appointments. He remained Colonel Commandant of the Corps of SSG and Colonel in Chief of the Regiment of Artillery and Baloch. He was appointed as Commander-in-Chief of Pakistan Army from 18 September, 1966 to 20 September, 1971.

General Yahaya Khan was awarded the Persian Symbol after completion of Six months service of Staff College Quetta, 1939-47 Star, Africa Star, Defence Medal, War Medal, Pakistan Dedal, Coronations Medal-1953, Tamgha-i-Difa, Sitara-Pak, Hilal-i-Jurat, Sitara-i-Harb and Hilai-i-Pak.
 

General Yahaya Khan remained in War Services in Wazirstan, Cyprus, Eritrea, North Africa and Palestine. General Yahaya Khan passed way on 08 august 1980 at the age of 63.