Members appointed to the Civil Division must "by their personal services to crown or by the performance of public duties have merited ... royal favour." Appointments to the Military Division are restricted by the minimum rank of the individual. GCBs hold the rank of admiral in the Royal Navy, general in the British Army or Royal Marines, or air chief marshal in the Royal Air Force. KCBs must at least hold the rank of vice admiral, lieutenant general in the Army or Marines, or air marshal. CBs tend be of the rank of rear admiral, major general in the Army, Royal Navy or Royal Marines, or air vice marshal in the Royal Air Force, and in addition must have been Mentioned in Despatches for distinction in a command position in a combat situation, although the latter is no longer a requirement. Non-line officers (e.g. engineers, medics) may be appointed only for meritorious service in wartime.