During the time of military coup of 1999, the then Lieutenant General Muhammad Yusaf Khan was the Corps Commander Multan. Due to his close proximity to General Musharraf, by September 2000, he was posted as Chief of General Staff (CGS) to replace the then Lieutenant General Aziz Khan who was instead given the command of Lahore Corps. The post of Chief of General Staff is considered vital as the chief overlooks the two intelligence bureaus within Pakistan Army (Military Intelligence and Intelligence Bureau). In fact, it is believed that a military coup against a government cannot be launched without tacit approval of the Chief of General Staff.