DILI, Timor Leste (October 5, 2017) - Steelworker Constructionman Clayton Peterson, Steelworker 3rd Class Brian Brookes and Construction Electrician 2nd Class Benjamin Dyer (right to left), assigned to Naval Mobile Construction Battalion (NMCB) 4, repair an air compressor to ensure mission readiness for the battalion equipment. 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 Ji Han/Released)