Tech. Sgt. Andrew Vierra Villanueva, center, a load master with the 204th Airlift Squadron conducts a preflight safety briefing on board a C-17 Globemaster to airmen from the 154th Medical Group, Detachment 1, Hawaii Air National Guard, at Joint Base Pearl Harbor-Hickam, Jan. 26, 2018. The medical airmen were headed to Nevada to facilitate a FEMA region 9 field training exercise with partners from the California and Nevada Air National Guard. (U.S. Air National Guard photo by Senior Airman Orlando Corpuz)