Commando Logistic Regiment The role of the Commando Logistic Regiment ( CLR ) , Royal Marines is to provide second line Combat Service Support to Headquarters 3 Commando Brigade and Royal Marines Commandos in peace , war and operations other than war . It is the 3 Commando Brigade dedicated logistic unit , which provides all second line Combat Service Support to the force , supporting it with a constant re - supply chain from initial assault to the final phase of any operation . CLR is unique that it is able to provide essential supplies for front - line Commando units for the initial 30 days of any operation by the transfer of stores from ship to shore - making it totally self - sufficient . " A formation ' s combat capability is defined by its ability to support itself logistically on operations . The organised control , distribution and availability of material will directly influence the Commander ' s ability to achieve his objective " Personnel . Personnel are mainly drawn from the Royal Navy but include some from the Army and RAF ; all would have had to pass the All Arms Commando Course in order to serve with the regiment . Royal Marines Band Service members also serve with the regiment in their secondary operational roles . Regimental Organisation . Based at Chivenor in North Devon the Commando Logistic Regiment role is to ensure the re - supply of ammunition , water , fuel and food , known as " combat supplies " to the ground forces , and provide specialist services to sustain the brigade ' s operations . The regiment is divided into Squadron Headquarters Squadron ( HQ Sqn ) is the biggest and most diverse Sqn within Commando Logistic Regiment . When fully manned , it has just over 200 personnel spanning 8 departments . The primary role of HQ Sqn is to co - ordinate the command and control function of logistic distribution , relaying stores information by computer from ship to shore and collating field requirements from forward units and assessing their priority of order for delivery or recovery . The Squadron is also responsible for providing what is termed ' first line ' or initial support to the Regiment . The Equipment Support Squadron provides the second line repair and recovery for all the equipment used by 3 Commando Brigade . The repair of equipment can range from a rifle through to the replacement of entire engines systems . The Squadron is primarily manned by Royal Marines , but also contains some Army personnel , from trades such as Vehicle Mechanics , Armourers and Metalsmiths . Operating in small teams , these personnel are trained to repair and recover all vehicles used by the Brigade . The Squadron ensures that vehicles are repaired as close to the front line as possible , in order that they can be returned to the battle quickly and efficiently . The Squadron is composed of a headquarters and three Troops made up from a combination of Royal Marines and the Army ' s Royal Logistic Corps ( RLC ) personnel . The role of the Squadron is to provide 3 Commando Brigade with 2nd line logistic support that includes transport , stores and bulk fuel . Technical Troop holds sixty days of fast moving , technical and general spares and has the ability to deploy airportable , Advance Ordnance Detachments ( AODs ) . Petroleum Troop operates Truck Transporters Fuel ( TTF ) . They have the ability to work from ' Ship - to - Shore ' with various specialist equipments and have the responsibility for the installation of Bulk Fuel Installations ( BFIs ) . Transport Troop use Dismountable Rack Offload Pickup System ( DROPS ) vehicles to provide the lift needed to supply combat supplies , artillery ammunition and engineering equipment . The Medical Squadron provides flexible , emergency medical and surgical support to 3 Commando Brigade on operations around the world . Manned by Royal Navy Medical Assistants , MAs , Naval Nurses , NNs , Forward Surgical Teams , FSTs , and Royal Marine Commandos , Medical Squadron , comprises a headquarters and two Commando Forward Surgical Groups , CFSGs . Each one of these is configured to deploy forward to allow Damage Control Surgery , saving life and limb , to be performed within 2 hours of troops being injured . The squadron is still restructuring itself following Operation TELIC in order to be better able to provide a versatile , modular , rapidly deployable and effective medical facility . Each CFSG consists of Medical Sections , ' A & E department ' , FSTs , ' operating theatre ' , EVAC sections , recovery ward and patient care for up to 6hrs , and Ambulance sections . This Squadron is organised and tailored to support designated tasks . It would be landed immediately after the ground troops during the initial stage of an amphibious operation . It provides control of beach and landing support areas and specific Combat Service Support to the Landing Force . When the remainder of the Commando Logistic Regiment is landed , the LFSP is subsumed into the Regiment ' s functional areas . Should the distance between the Regiment and ground troops become extended , the LFSP would be deployed forward to once again provide intimate support . On 1 December 2009 Logistic Task Group was formed , capable of deploying worldwide in less than five days . The Logistic Task Group or ' LTG ' for short is part of the United Kingdom ’ s ‘ Small Scale Contingent Battlegroup ’ . The LTG will provide immediate sustainment to the Battlegroup wherever they are deployed ; enabling equipment repair and recovery , logistic supply and distribution and above all , medical support . Designed carefully to complement the Battlegroup ’ s organic logistic capabilities the LTG will enable extra reach and endurance demanded by global operations . Forged together since September 2009 and exercised extensively on Exercise Orange Marauder in November , the team achieved a well earned endorsement and validation by the United Kingdom ’ s Permanent Joint Headquarters and Chief of Joint Operations . From the frozen arctic tundra or tropical desert hinterland through to arid desert plains the LTG is now ready to launch wherever and whenever needed . 383 Commando Petroleum Troop of the Royal Logistic Corps in a unit responsible for the handling , supply and storage of bulk fuels from ship to shore and under front line combat conditions . It is a Commando unit and all its members must pass the All Arms Commando Course in order to serve with their Regular counterparts in the Commando Logistic Regiment in 3 Commando Brigade , Royal Marines .