To provide tailored supply support in an expeditionary environment, supporting an Advanced Logistical Support Site. (ALSS), a Forward Logistics Site (FLS), or a host Command as a functional supply department. The ELSF is a rapid contingency response force of advanced based functional component units (NCHBs, NOACTs, FTUs, SSBs, TKFMs) capable of providing sea, air and land logistics support to our maritime forces.