cheval-de-frise
81City gate — The Brama Młyńska in Stargard Szczeciński one of a few water gates in Europe …
82Motte-and-bailey — A motte and bailey is a form of castle, with a wooden or stone keep situated on a raised earthwork called a motte, accompanied by an enclosed courtyard, or bailey, surrounded by a protective ditch an …
83Defensive 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… …
84Embrasure — For the area of the mouth, see Embrasure (dentistry). Inverted keyhole embrasure, allowing both arrow fire (through the arrow slit at the top) and small cannon fire through the circular opening, Château de Caen, France …
85Battlement — Castellated redirects here. For the hardware item, see castellated nut. 9th cent. BC relief of an Assyrian attack on a walled town with battlements …
86Drawbridge — This article is about a type of bridge. For the California ghost town, see Drawbridge, California. For the broader American meaning of the term, see Moveable bridge. Drawbridge at the fort of Ponta da Bandeira; Lagos, Portugal A drawbridge is a… …
87Castra — This article is part of the series on: Military of ancient Rome (portal) 753 BC – AD 476 Structural history Roman army (unit types and ranks …
88Mamelon (fort) — For other uses, see Mamelon (disambiguation). The Council of War on the day of the taking of the Mamelon Quarries, 7 June 1855 by Roger Fenton. A mamelon (from French nipple ) is a French name for a breast shaped hillock …
89Ravelin — The ravelin outside the Land Gate at Tilbury Fort The …
90Concentric castle — Krak des Chevaliers: a concentric castle …
