190705-N-JA639-1004 SAN CLEMENTE ISLAND, Calif. (July 5, 2019) Construction Mechanic Constructionman Donovan Hendrickson, assigned to Naval Mobile Construction Battalion (NMCB) 4, uses a 966 Loader to load material on to a dump truck. NMCB 4 supports major combat operations, humanitarian assistance and disaster relief and provides general engineering and civil support to U.S. and joint forces. (U.S. Navy photo by Equipment Operator Constructionman Itzel Contreras/Released)