U.S. Air Force Capt. Lindsey Hatcher, Ninth Air Force Surgeon General medic, checks the vitals of 2nd Lt. Michael Hollis, 51st Combat Communications Squadron officer in charge, during Mission Readiness Exercise (MRX) 19-2, Shaw Air Force Base, S.C., Dec. 12, 2018. The 20th Medical Group at Shaw provided Hatcher as an exercise participant to provide real-world medial for other exercise participants at the forward headquarters. MRX 19-2 was an initial operational capability certification event designed to demonstrate Ninth Air Force’s ability to effectively plan, prepare, execute and assess Combined Joint Task Force operations at the operational level of war as tasked by the Air Force Chief of Staff. (U.S. Air Force photo by Tech. Sgt. Amanda Dick)