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Ravelins
A ravelin is a triangular fortification or detached outwork, located in front of the innerworks of a fortress (the curtain walls and bastions). Originally called a ''demi-lune'', after the '' lunette'', the ravelin is placed outside a castle and opposite a fortification curtain wall. The ravelin is the oldest and at the same time the most important outer work of the bastion fortification system. It originated from small forts that were supposed to cover the bridge that led across the moat to the city or fortress gate from a direct attack. From this original function, to protect the gate bridge, also comes its original Italian name "''rivellino''" (which means small bank work or with the German expression common for it: ''Brückenkopf'' – "bridge head"). Therefore, the ravelin was at first only a small work, which should only make the access to the bridge in front of the fortress gates more difficult. When it was realized in the 16th century that this would generally pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petersberg Citadel
Petersberg Citadel (German:''Zitadelle Petersberg'') in Erfurt, central Germany, is one of the largest and best-preserved town fortresses in Europe.Stadtverwaltung Erfurt (17 November 2017) ''Petersberg'' Retrieved 23 December 2017 The citadel was built on Petersberg hill, in the north-western part of the old town centre from 1665, when Erfurt was governed by the Electorate of Mainz.Kogel, Kristina (2011). ''Erfurt an einem Tag. Ein Stadtrundgang''. Leipzig: Lehmstadt Verlag It is surrounded by over two kilometres of stone walls and is 36 hectares in size.Erfurt Tourismus & MarketinPetersberg Citadel (pdf). Retrieved 2 January 2013 Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963.Steffen Raßloff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bastion Fort
A bastion fort or ''trace italienne'' (a phrase derived from non-standard French, literally meaning ''Italian outline'') is a fortification in a style that evolved during the early modern period of gunpowder when the cannon came to dominate the battlefield. It was first seen in the mid-fifteenth century in Italy. Some types, especially when combined with ravelins and other outworks, resembled the related star fort of the same era. The design of the fort is normally a polygon with bastions at the corners of the walls. These outcroppings eliminated protected blind spots, called "dead zones", and allowed fire along the curtain from positions protected from direct fire. Many bastion forts also feature cavaliers, which are raised secondary structures based entirely inside the primary structure. Origins Their predecessors, medieval fortresses, were usually placed on high hills. From there, arrows were shot at the enemies. The enemies' hope was to either ram the gate or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star Fort
A bastion fort or ''trace italienne'' (a phrase derived from non-standard French, literally meaning ''Italian outline'') is a fortification in a style that evolved during the early modern period of gunpowder when the cannon came to dominate the battlefield. It was first seen in the mid-fifteenth century in Italy. Some types, especially when combined with ravelins and other outworks, resembled the related star fort of the same era. The design of the fort is normally a polygon with bastions at the corners of the walls. These outcroppings eliminated protected blind spots, called "dead zones", and allowed fire along the curtain from positions protected from direct fire. Many bastion forts also feature cavaliers, which are raised secondary structures based entirely inside the primary structure. Origins Their predecessors, medieval fortresses, were usually placed on high hills. From there, arrows were shot at the enemies. The enemies' hope was to either ram the gate or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Engineer
Military engineering is loosely defined as the art, science, and practice of designing and building military works and maintaining lines of military transport and military communications. Military engineers are also responsible for logistics behind military tactics. Modern military engineering differs from civil engineering. In the 20th and 21st centuries, military engineering also includes other engineering disciplines such as mechanical and electrical engineering techniques. According to NATO, "military engineering is that engineer activity undertaken, regardless of component or service, to shape the physical operating environment. Military engineering incorporates support to maneuver and to the force as a whole, including military engineering functions such as engineer support to force protection, counter-improvised explosive devices, environmental protection, engineer intelligence and military search. Military engineering does not encompass the activities undertaken by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Established Military Terms
This is a list of established military terms which have been in use for at least 50 years. Since technology and doctrine have changed over time, not all of them are in current use, or they may have been superseded by more modern terms. However, they are still in current use in articles about previous military periods. Some of them like ''camouflet'' have been adapted to describe modern versions of old techniques. Administrative * Cantonment: a temporary or semi-permanent military quarters; in South Asia, the term cantonment also describes permanent military stations. * Logistics * Materiel (also ''matériel'') * Military supply chain management * Staging area Intelligence * Signals intelligence (SIGINT) and signals intelligence in modern history ** Electronic intelligence (ELINT) *** High-frequency direction finding (nicknamed ''huff-duff'') is the common name for a type of radio direction finding employed especially during the two world wars. ** Communications intelligence (CO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castillo De San Marcos
The Castillo de San Marcos ( Spanish for "St. Mark's Castle") is the oldest masonry fort in the continental United States; it is located on the western shore of Matanzas Bay in the city of St. Augustine, Florida. It was designed by the Spanish engineer Ignacio Daza, with construction beginning in 1672, 107 years after the city's founding by Spanish Admiral and conquistador Pedro Menéndez de Avilés, when Florida was part of the Spanish Empire. The fort's construction was ordered by Governor Francisco de la Guerra y de la Vega after a raid by the English privateer Robert Searles in 1668 that destroyed much of St. Augustine and damaged the existing wooden fort. Work proceeded under the administration of Guerra's successor, Manuel de Cendoya in 1671, and the first ''coquina'' stones were laid in 1672. The construction of the core of the current fortress was completed in 1695, though it would undergo many alterations and renovations over the centuries. Though built in part by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tilbury Fort
Tilbury Fort, also known historically as the Thermitage Bulwark and the West Tilbury Blockhouse, is an artillery fort on the north bank of the River Thames in England. The earliest version of the fort, comprising a small blockhouse with artillery covering the river, was constructed by King Henry VIII to protect London against attack from France as part of his Device programme. It was reinforced during the 1588 Spanish Armada invasion scare, after which it was reinforced with earthwork bastion, and Parliamentary forces used it to help secure the capital during the English Civil War of the 1640s. Following naval raids during the Anglo-Dutch Wars, the fort was enlarged by Sir Bernard de Gomme from 1670 onwards to form a star-shaped defensive work, with angular bastions, water-filled moats and two lines of guns facing onto the river. In addition to protecting the Thames, in the 18th century Tilbury also began to be used a transit depot and for storing gunpowder. It continue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gibraltar
) , anthem = " God Save the King" , song = " Gibraltar Anthem" , image_map = Gibraltar location in Europe.svg , map_alt = Location of Gibraltar in Europe , map_caption = United Kingdom shown in pale green , mapsize = , image_map2 = Gibraltar map-en-edit2.svg , map_alt2 = Map of Gibraltar , map_caption2 = Map of Gibraltar , mapsize2 = , subdivision_type = Sovereign state , subdivision_name = , established_title = British capture , established_date = 4 August 1704 , established_title2 = , established_date2 = 11 April 1713 , established_title3 = National Day , established_date3 = 10 September 1967 , established_title4 = Accession to EEC , established_date4 = 1 January 1973 , established_title5 = Withdrawal from the EU , established_date5 = 31 January 2020 , official_languages = English , languages_type = Spoken languages , languages = , capital = Westside, Gibraltar (de facto) , coordinates = , largest_settlement_type = largest district , l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Green (general)
General Sir William Green, 1st Baronet, of Marass, Kent (4 April 1725 – 10 January 1811) was an officer in the British Army. After receiving a private education in Aberdeen, Scotland and a military education at the Royal Military Academy in Woolwich, England, he was appointed as a practitioner engineer in 1743. Green served on the European continent until 1752, after which he was in Canada. There, he continued to advance through both the ordinary military and engineering ranks. Following his return to England, Green was named senior engineer for Gibraltar about 1761, and the next year promoted to lieutenant colonel. He was promoted to chief engineer for Gibraltar in 1770, and designed and executed a number of military works on the Rock. In 1772, his idea of a regiment of military artificers, to replace the civilian mechanics who had formerly constructed military works, came to fruition in the form of the Soldier Artificer Company, the predecessor of the Corps of Royal Sappers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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