The ELB program is a joint Advanced Concept Technology Demonstration funded by the Navy, Marine Corps and the Office of the Secretary of Defence, and managed by the Naval Research. ELB is based on the new warfare paradigm defined by 'joint vision 2010, and on concepts developed by the Navy and Marine Corps in 'From the Sea', 'Forward...from the Sea', 'Ship to Objective Maneuver (STOM)', and 'Operational Maneuver from the Sea'. The objective of ELB is to demonstrate effective operation of dispersed forces in a variety of littoral environments, and to provide those forces timely remote fire support. Successful operation will depend on achieving a common situational awareness among a mobile, distributed command and control, a shortened sensor- to-shooter timeline, and effective utilization of all information source. The glue to hold this system of systems together is a reliable wide band communications system and network infrastructure. This paper will describe the overall architecture of ELB and focus on the core command and control functions associated with achieving a common situational awareness.