The role of the Commando Logistic Regiment (CLR), Royal Marines is to provide second line Combat Service Support to 3 Commando Brigade. It is 3 Commando Brigade's dedicated logistic unit and 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 in 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.