Promoted to Brigadier, he attended an army languages course to learn Arabic before he assumed command of the
Sultan's Armed Forces (SAF), in
Oman, in 1970. On 23 July 1970, Said bin Taimur was deposed. The coup d'état succeeded because the Omani army's chief intelligence officer in the Dhofar, Brigadier John Graham, and Colonel
Hugh Oldman, military (later defence) secretary and supreme commander of the army in
Muscat, insisted that Said surrender. When Qaboos confronted his father, accompanied by Graham, shots were fired. The Sultan was flown out of Oman by the RAF to
Bahrain. On the morning after the Coup, it was Graham who took the minutes of the meeting of Sultan Qaboos' advisory cabinet. For his service, Graham received the
Military Order of Oman in 1972. ==Later career==