Air Force Chief of Staff Gen. Charles Q. Brown, Jr. speaks during the 2019 MacKay Trophy presentation ceremony at Davis-Monthan Air Force Base, Ariz., Feb. 18, 2021. Brown presented the trophy to two Davis-Monthan A-10 Thunderbolt II pilots for their meritorious combat mission over Afghanistan in 2019. (U.S. Air Force photo by Staff Sgt. Sergio A. Gamboa)