YOKOSUKA, Japan (Dec. 20, 2017) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 4, take elevations for the garage door jamb to be installed for Pre-Engineered Building (PEB) projects. NMCB 4 is forward deployed to the pacific, 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 Steelworker 2nd Class Jeffery S. Boerma/ Released)