Equipment Operator 3rd Class Zachary Darrow, assigned to Naval Mobile Construction Battalion (NMCB) 3, uses a cement drill during a construction project in Vatubou, Timor-Leste, July 27, 2017. NMCB 3 provides expeditionary construction and engineering support to expeditionary bases and responds to humanitarian assistance disaster relief requests. (U.S. Navy Combat Camera photo by Mass Communication Specialist 1st Class Martin Wright)