Maj. Kevin Eilers (left) assists Lt. Col. Darin Jacoby, 123rd Contingency Response Group medical flight commander, to inventory medical supplies during a Joint Task Force-Port Opening exercise known as Operation Lone Oak at Volk Field, Wis., June 11, 2021. Jacoby treated Airmen and Soldiers for a wide range of medical needs during the exercise. (U.S. Air National Guard photo by Senior Master Sgt. Vicky Spesard)