The Royal Army of Oman (RAO) celebrated on Wednesday the graduation of a new batch of recruits at the parade ground of the Royal Army of Oman Training Battalion at the Royal Army of Oman Academy. Muscat: The Royal Army of Oman (RAO) today celebrated the passing out of a new batch of recruits who took a course at the Training Battalion of the Sultan’s Armed Forces (SAF) in Muscat Governorate.