Dr. Richard Arnold, Naval Aerospace Medical Research Laboratory, NAMRU-Dayton director, speaks with Air Force Vice Chief of Staff Gen. David W. Allvin in the sensors laboratory during his visit to Air Force Research Laboratory’s 711th Human Performance Wing, Apr. 26, 2021 at Wright-Patterson Air Force Base, Ohio. Allvin was briefed on the Navy-Air Force joint capability in aerospace physiology research at Wright-Patterson AFB. (U.S. Navy photo by Megan Mudersbach)