MUSTACHES & THE U.S. ARMY
"Mustaches are permitted; if worn, males will keep mustaches neatly trimmed, tapered, and tidy. Mustaches will not present a chopped off or bushy appearance, and no portion of the mustache will cover the upper lip line or extend sideways beyond a vertical line drawn upward from the corners of the mouth. Handlebar mustaches, goatees, and beards are not authorized. If appropriate medical authority prescribes beard growth, the length required for medical treatment must be specified... Soldiers will keep the growth trimmed to the level specified by appropriate medial authority, but they are not authorized to shape the growth into goatees, or 'Fu Manchu' or handlebar mustaches."
[Army Regulation 670-1, Pt.1 Ch.1-8a(c)]
Bill Clinton (1946-)