(U.S. Air Force photo by Airman 1st Class Chris Drzazgowski/Released)

U.S. Air Force Chief of Staff Gen. Mark A. Welsh III speaks to Airmen during an all-call at Davis-Monthan Air Force Base, Ariz., March 25, 2015. During the all-call, Welsh emphasized that no matter what their job entails, each individual Airman is critical to the Air Force mission.