scarp wall
61Bastion — For other uses, see Bastion (disambiguation). bulwark redirects here. For other uses, see bulwark (disambiguation). Drawn representation of a bastion A bastion, or a bulwark, is a structure projecting outward from the main enclosure of a… …
62City gate — The Brama Młyńska in Stargard Szczeciński one of a few water gates in Europe …
63Defensive fighting position — Foxhole redirects here. For the Cornish village, see Foxhole, Cornwall. Foxholes redirects here. For the North Yorkshire village, see Foxholes, North Yorkshire. U.S. Marine in a fighting hole, July 1958. A defensive fighting position (DFP) is a… …
64Murder-hole — Meurtrière redirects here. For the 2006 French film, see Meurtrières. Murder holes at Bodiam Castle A murder hole or meurtrière is a hole in the ceiling of a gateway or passageway in a fortification through which the defenders could fire, throw… …
65Coupure — A coupure where the A2 motorway crosses the Diefdijk in the Netherlands …
66Coastal management — This article is about coastal management aimed to prevent erosion and flooding. For broader management issues, see Integrated coastal zone management. Oosterscheldekering sea wall, the Netherlands. In some jurisdictions the terms sea defense and… …
67Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
68Circular rampart — Artist s impression of the circular rampart of Burg, near Celle, Germany A circular rampart (German: Ringwall) is an embankment built in the shape of a circle that was used as part of the defences for a military fortification, hill fort or refuge …
69barrier — Synonyms and related words: abatis, advanced work, arch dam, backstop, balistraria, balustrade, bamboo curtain, bank, banquette, bar, barbed wire entanglement, barbican, barrage, barricade, bartizan, bastion, battlement, bear trap dam, beaver dam …
70Citadel — This article is about a type of fortification. For other uses, see Citadel (disambiguation). In this seventeenth century plan of the fortified city of Casale Monferrato the citadel is the large star shaped structure on the left …
