U.S. Air Force Maj. Karl Hurdle, air liaison officer, left, and Tech Sgt. Laurence Paradis, advise Estonian defense force members on Joint Terminal Attack Controller capabilities while three UH-60 Black Hawk helicopters take off during exercise Hedgehog 2018 in Estonia, May 8, 2018. Hurdle and Paradis are tactical air control party members assigned to the Oklahoma National Guard’s 146th Air Support Operations Squadron. Army photo By Maj. Kurt M. Rauschenberg