Maj. Robert Wetzler, 86th Medical Group pediatrician, Ramstein Air Base, Germany, participates in a multinational medical exercise drill during exercise Vigorous Warrior 19, Cincu Military Base, Romania, April 9, 2019. Vigorous Warrior 19 is NATO’s largest-ever military medical exercise, uniting more than 2,500 participants from 39 countries to exercise experimental doctrinal concepts and test their medical assets together in a dynamic, multinational environment. (U.S. Air Force photo by 1st Lt. Andrew Layton)