1 x Commando Brigade Headquarters 3 x Royal Marine Commando (Battalion Size) 3 x Commando Assault Helicopter Squadrons 4 x Special Boat Service Squadrons 1 x Commando Light Helicopter Squadron 1 x Commando Regiment Royal Artillery 1 x Commando Squadron Royal Engineers 1 x Commando Logistic Regiment 1 x Commando Assault Group (Landing-Craft) 1 x Fleet Protection Group 1 x Security Unit for National Strategic Deterrent Royal Marines Training Establishment Royal Marines Band Service Reserve Units |