Condition ALFA
Condition ALFA : "The USACE posture resulting from a surprise nuclear attack on the CONUS which may destroy the entire or portion of the seat of government and the keypersonnel of HQUSACE. Planning for this condition is based on employment of an alternate command element and/or predesignated AH to provide continuity of operations. (USACE, Planning and Operations Guidelines, Annex V: Definitions and Common Terms, 1985, p. V-1)