Breastwork
81Defensive wall — See also: List of cities with defensive walls Part of the Great Wall of China, a UNESCO World Heritage Site …
82Corvette — This article is about the type of warship. For the car, see Chevrolet Corvette. For other uses, see Corvette (disambiguation). Corvette French steam corvette Dupleix (1856–1887) …
83Moat — For information on the moat of a tropical cyclone, see eye (cyclone). For the gunman, see Raoul Moat. The moated manor house of Baddesley Clinton in Warwickshire, England A moat is a deep, broad ditch, either dry or filled with water, that… …
84Hill fort — Maiden Castle in England is one of the largest hill forts in Europe.[1][2] Photograph taken in 1935 by Major George Allen (1891–1940). A hill fort is a type of …
85Scorched earth — Not to be confused with Slash and burn. For other uses, see Scorched Earth (disambiguation). Kuwaiti oil wells set alight by retreating Iraqi forces in 1991. A scorched earth policy is a military strategy or operational method which involves… …
86Caltrop — For the plant or its fruit, see water caltrop. Iron caltrop used in Vietnam. A caltrop (also known as caltrap, galtrop, cheval trap, galthrap, galtrap,[1] calthrop …
87Fortification — Fort and Fortress redirect here. For other uses, see Fort (disambiguation) and Fortress (disambiguation). For other uses, see Fortification (disambiguation) …
88Minesweeper (ship) — US Navy Admirable class minesweeper USS Pivot in the Gulf of Mexico for sea trials on 12 July 1944 A minesweeper is a small naval warship designed to counter the threat posed by naval mines. Minesweepers generally detect then neutralize mines in… …
89Lucius Cornelius Sulla — This article is about the Roman dictator Sulla. For the Celtic goddess sometimes called Sulla, see Sulis. Lucius Cornelius Sulla Bust of Sulla in the Munich Glyptothek Dictator of the Roman …
90Bastion — 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… …
