U.S. Marine Cpl. Trenton J. Gallion, right, a communications

U.S. Marine Cpl. Trenton J. Gallion, right, a communications technician with the Air Traffic Control Mobile Team, 26th Marine Expeditionary Unit (MEU), and U.S. Navy Hospital Corpsman 1st Class John E. Cantu, with the 26th MEU, evaluate the dimensions of a helicopter landing zone during a reassessment of medical and operational needs previously requested as part of the humanitarian effort for victims of Hurricane Maria at HIMA San Pablo Hospital, Ceiba, Puerto Rico, Sept. 29, 2017. The 26th MEU is supporting the Federal Emergency Management Agency, the lead federal agency, and local authorities in Puerto Rico with the combined goal of protecting the lives and safety of those in affected areas. (U.S. Marine Corps photo by Lance Cpl. Tojyea G. Matally)