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 (Australia) Major general (Australia) Major general (abbreviated MAJGEN) is a senior rank of the Australian Army, and was created as a direct equivalent of the British military rank of major general. It is the third-highest active rank of the Australian Army (the rank of field marshal not being held by any currently serving officer), and is considered to be equivalent to a two-star rank. A major general commands a division or the equivalent. Major general is a higher rank than brigadier, but lower than lieutenant general. Major general is the equivalent of rear admiral in the Royal Australian Navy and air