Navy Adm. Alvin Holsey, commander, U.S. Southern Command; and Air Force Gen. Gregory M. Guillot, commander, U.S. Northern Command and North American Aerospace Defense Command, provide testimony at 9:30 a.m. EST at a Senate Armed Services Committee hearing on the posture of USNORTHCOM and USSOUTHCOM in review of the Defense Authorization Request for fiscal 2026 and the Future Years Defense Program, Dirksen Senate Office Building, Washington, D.C.