US Marines forward observers direct long-range firepower during a Fire Support Coordination Exercise at Marine Corps Air Ground Combat Center Twentynine Palms. FSC-EX is part of the 15th Marine Expeditionary Unit’s Realistic Urban Training, which is the MEU’s final land-based training exercise before the first at-sea period with the America Amphibious Ready Group. The Marines of the 15th MEU undergo a series of advanced training exercises to ensure all elements of the 15th MEU are prepared to confront any obstacles they may face in their upcoming deployment.