In addition to the army's infantry battalions, there are three further battalion-sized commando infantry units, which are part of the Royal Marines, as well as eight field squadrons (each larger than an infantry company) of the RAF Regiment, who have responsibility for the ground defence of air assets and are under the control of the Royal Air Force.
In addition to the army's infantry battalions, there are three further battalion-sized commando infantry unit,s which are part of the Royal Marines, as well as eight field squadrons (each larger than an infantry company) of the RAF Regiment, who have responsibility for the ground defence of air assets and are under the control of the Royal Air Force.