Lt. Gen. Thomas Travis, United States Air Force Surgeon General, visits the 79th Medical Wing during a site visit at Joint Base Andrews, Md., April 7, 2015. In this capacity, Travis advises the Secretary of the Air Force, Air Force Chief of Staff and Assistant Secretary of Defense for Health Affairs on aspects pertaining to the health of Air Force members. (U.S. Air Force photo/Airman 1st Class Ryan J. Sonnier)