Air Force Gen. Gregory M. Guillot, commander of U.S. Northern Command and North American Aerospace Defense Command; Navy Adm. Alvin Holsey, commander of U.S. Southern Command; Rafael F. Leonardo, performing the duties of assistant secretary of defense for homeland defense and hemispheric affairs, office of the secretary of defense; and Robert G. Salesses, deputy director, Washington Headquarters Services, speak to the House Armed Services Committee regarding the military posture in North and South America during a hearing in Washington, April 1, 2025.