160425-N-HU290-538 YOKOSUKA, Japan (Apr. 25, 2016) - Equipment Operator 3rd Class William Price, assigned to Naval Mobile Construction Battalion (NMCB) 4, operates a compaction roller to create a solid foundation on a ditch pipeline trench to prepare for concrete to be poured by the Tokyo Bay in Yokosuka, Japan. NMCB 4 is the forward deployed pacific NMCB ready to support major combat operations, humanitarian assistance/disaster relief operations and provide general engineering support to Navy, Marine Corps and joint operational forces. (U.S. Navy photo by Construction Electrician 3rd Class Christopher Evenson/Released)