Sometimes called couvre-faces, counter-guards are works constructed in permanent fortifications to cover a bastion or demi-lune. They consist of two faces forming a salient angle.
Related term(s): Fortification; Bastion; Demi-lune; Face (Fortification); Angle, Salient
Category: Castles and Fortifications
Source information: Wilhelm, Thomas. A Military Dictionary and Gazetteer. Philadelphia: L.R. Hamersly & Co., 1881. 117.