A U.S. Marine Corps mortar team with 1st Battalion,

A U.S. Marine Corps mortar team with 1st Battalion, 5th Marine Regiment attached to the 15th Marine Expeditionary Unit, loads and fires a 81 millimeter mortar round during a Fire Support Coordination Exercise (FSC-EX) Marine Air Ground Task Force Training Center Twentynine Palms, Calif., March 8, 2017. FSC-EX is part of the 15th MEU’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. (U.S. Marine Corps by Lance Cpl. Jacob Pruitt)