Military rank Typical army and marine field officer ranks include colonel , lieutenant colonel, major and, in the British army, captains holding an adjutant's appointment. In many Commonwealth countries the field rank of brigadier is used, although it fills the position held by brigadier general in other countries. Naval and coast guard senior officer ranks include captain and commander. In some countries, the more senior rank of commodore is also included. In others lieutenant-commanders, as equivalents to army and marine majors, are considered senior officers. Commonwealth air force senior officer ranks include group captain, wing commander, and squadron leader, where such ranks
Force Element Group Force Element Group The Force Element Groups (FEGs) of the Australian Defence Force are the operational capabilities. Each of the component commands has a set of FEGs. The FEG operational commanders report to the component commanders (COMAUSFLT/CFC/ACAUST), who in turn report to the operation's Task Force commander. The FEG commanders are either of Captain (naval)/Colonel/Group Captain rank, or one-star rank for larger FEGs (Commodore/Brigadier/Air Commodore). The component commanders are of two-star rank (Rear Admiral/Major General/Air Vice Marshal). There are two parts to the Royal Australian Navy (RAN)'s structure. One is an operational command, Fleet Command, and the other is a