Acting Secretary of the Air Force John P. Roth (center), Chief of Staff of the Air Force Gen. Charles Q. Brown Jr. (left) and Chief of Space Operations Gen. John W. "Jay" Raymond prepare to answer questions during the House Appropriations Committee on Defense during a virtual hearing at the Pentagon, Arlington, Va., May 7, 2021. Committee members raised topics that included confronting new and emerging threats, air and space superiority, and nuclear deterrence. (U.S. Air Force photo by Wayne Clark)