(1)the “civil service” consists of all appointive positions in the executive, judicial, and legislative branches of the Government of the United States, except positions in the uniformed services;
(2)“armed forces” means the Army, Navy, Air Force, Marine Corps, and Coast Guard; and
(3)“uniformed services” means the armed forces, the commissioned corps of the Public Health Service, and the commissioned corps of the National Oceanic and Atmospheric Administration.