Petty Officer 2nd Class Adam Caballero digs a trench

Petty Officer 2nd Class Adam Caballero digs a trench for electrical cables during an integrated Expeditionary Medical Facilities exercise. During the exercise, Seabees from Construction Battalion Maintenance Unit 202 from Norfolk, Va., teamed with CBMU 303 and EMF Team 1 to erect and operate a field hospital at the Navy Expeditionary Training Institute. (U.S. Navy photo by Lt. Raul Cuevas)