Logistic Support Squadron (LSS)—often referred to as the Commando Logistic Support Squadron—is a specialist Royal Logistic Corps sub-unit embedded within the Commando Logistic Regiment Royal Marines (CLR), based at RM Chivenor in North Devon. As a vital component of 3 Commando Brigade, the squadron provides dedicated "second-line" logistic support to the UK’s amphibious forces, managing the supply of ammunition, fuel, rations, and equipment in challenging littoral environments. Because the unit supports the Royal Marines directly, its RLC soldiers are required to attempt the grueling All Arms Commando Course (AACC) at Lympstone. Successful completion grants them the right to wear the coveted Green Beret and the Commando Dagger flash, marking them as elite "Commando Logisticians" capable of operating in extreme conditions, from the frozen Arctic circle to tropical jungles.
