Colonel (United States) Colonel (United States) In the United States Army, Marine Corps, and Air Force, colonel () is the most senior field grade military officer rank, immediately above the rank of lieutenant colonel and immediately below the rank of brigadier general. It is equivalent to the naval rank of captain in the other uniformed services. The pay grade for colonel is O-6. The insignia of the rank of colonel, as seen on the right, is worn on the officer's left side (a mirror-image version is worn on the right side, such that the eagle always faces forward to the wearer's front; the
Major-general (United Kingdom) of the Royal Army Chaplains Department, the Chaplain-General, and similar appointments, were accorded 'the relative precedence' - that is to say the equivalence rather than the full powers and authority - of the rank of major-general. The Commandant General Royal Marines has held the rank of major general since 1996, when the post was downgraded from lieutenant general. As in the British Army, a Royal Marine major general ranks below lieutenant general and above brigadier. From its foundation on 1 April 1918 to 31 July 1919, the Royal Air Force (RAF) briefly maintained the rank of major-general. The service was