171010-N-NO181-010 AGAT, Guam (Oct. 10, 2017) – Construction Mechanic Constructionman Gabriel McGraw, assigned to Naval Mobile Construction Battalion (NMCB) 4, conducts repairs on a 400-gallon water tank trailer mounted. Ensuring pieces of Civil Engineering Support Equipment (CESE) is properly maintained and ready for tasking allows the battalion to respond quickly and safely to support major combat operations or humanitarian aid/disaster relief operations. (U.S. Navy photo by Construction Mechanic 2nd Class Jeremy Colbert/Released)