190321-N-AX144-1010 YORKTOWN, Va. (March 21, 2019) Seabees assigned to Construction Battalion Maintenance Unit (CBMU) 202 move a hardened sentry post they constructed during a training exercise at Naval Weapons Station Yorktown, Cheatham Annex in Yorktown, Virginia. CBMU-202 provides contingency public works support for advanced bases and expeditionary medical facilities, expeditionary support for Naval Construction Force higher headquarters, line haul and equipment maintenance, general engineering, construction support, and humanitarian assistance and disaster recovery to Navy regional commanders. (U.S. Navy photo by Engineering Aide 2nd Class Travis Kovalak/Released)