Defense Department leaders testify during a House Armed Services Committee subcommittee hearing on military readiness in Washington, May 6, 2025. Witnesses include: Army Gen. James J. Mingus, vice chief of staff of the Army; Navy Adm. James W. Kilby, vice chief of naval operations; Marine Corps Gen. Christopher J. Mahoney, assistant commandant of the Marine Corps; Air Force Lt. Gen. Adrian L. Spain, deputy chief of staff for operations; and Space Force Gen. Michael A. Guetlein, vice chief of space operations.