Engineman 2nd Class Courtney Malonepatterson, attached to Amphibious Construction Battalion (ACB) 1, fixes the night-lights aboard Improved Navy Lighterage System Causeway Ferry 17 during Exercise Pacific Horizon 2015. PH15 is a scenario-driven, simulation supported crisis response exercise designed to improve 1st Marine Expeditionary Brigade's and Expeditionary Strike Group 3's interoperability and strengthen Navy-Marine Corps relationships by conducting an in-stream Maritime Prepositioning Force offload of equipment, by providing host country civil-military security assistance, and by conducting infrastructure restoration support. (U.S. Navy photo by Mass Communication Specialist Seaman Eric Chan/Released)