John F. Plumb, assistant secretary of defense for space policy; Air Force Gen. Anthony J. Cotton, commander of U.S. Strategic Command; Space Force Gen. Stephen N. Whiting, commander of U.S. Space Command; and Air Force Gen. Gregory M. Guillot, commander of U.S. Northern Command and North American Aerospace Defense Command, testify before the House Armed Services Committee in Washington, March 21, 2024.