U.S. Air Force Master Sgt. Michelle Geers, an aeromedical evacuation technician from the 315th Aeromedical Evacuation Squadron, demonstrates the locking mechanism for a litter used aboard a U.S. Air Force C-17 Globemaster III aircraft with Capt. Louisealbertine Sarabosing, a clinical nurse with the 624th Aeromedical Staging Squadron, at U.S. Coast Guard Air Station Barbers Point, Hawaii, July 10, 2018, during Pacific Lifeline 2018. Pacific Lifeline 2018 is a statewide medical exercise in Hawaii conducted as part of a larger 2018 Rim of the Pacific Exercise. The 624th ASTS provides medical support for the 624th Regional Support Group, ensuring oversight of individual health and medical readiness, and supports worldwide operations, including exercises, humanitarian relief and disaster response operations. (U.S. Air Force photo by Jerry R. Bynum)