Airmen from the 109th Aeromedical Evacuation Squadron, Minnesota Air National Guard, navigate through an aeromedical-specific obstacle course at Will Rogers Air National Guard Base, Oklahoma City, during the Multiple Aircraft Training Opportunity Program (MATOP), April 7, 2017. Airmen of the 137 AES were joined by eight of the nine Air National Guard aeromedical evacuation squadrons as they hosted the annual training event and accomplished mandatory annual aeromedical training requirements. (U.S. Air National Guard photo by Senior Master Sgt. Andrew M. LaMoreaux/Released)