91-587: The Royal Engineers Museum, Library and Archive is a military engineering museum and library in Gillingham , Kent . It tells the story of the Corps of Royal Engineers and British military engineering in general. The 'Ravelin Building', which was designed by Major E.C.S. Moore, Royal Engineers and was completed in 1905 at a cost £40,000, was originally used as electrical engineers' school before becoming
182-537: A better system of training for siege operations was required. On 23 April 1812 an establishment was authorised, by Royal Warrant, to teach "Sapping, Mining, and other Military Fieldworks" to the junior officers of the Corps of Royal Engineers and the Corps of Royal Military Artificers, Sappers and Miners. The first courses at the Royal Engineers Establishment were done on an all ranks basis with
273-404: A city or fortress that cannot be easily taken by a quick assault, and which refuses to surrender . Sieges involve surrounding the target to block provision of supplies and reinforcement or escape of troops (a tactic known as " investment "). This is typically coupled with attempts to reduce the fortifications by means of siege engines , artillery bombardment, mining (also known as sapping), or
364-480: A dedicated force of military engineering specialists were the Romans, whose army contained a dedicated corps of military engineers known as architecti . This group was pre-eminent among its contemporaries. The scale of certain military engineering feats, such as the construction of a double-wall of fortifications 30 miles (48 km) long, in just 6 weeks to completely encircle the besieged city of Alesia in 52 B.C.E.,
455-483: A given volume in a short duration. Specific military engineering occupations also extend to the field of explosives and demolitions and their usage on the battlefield. Explosive devices have been used on the battlefield for several centuries, in numerous operations from combat to area clearance. Earliest known development of explosives can be traced back to 10th-century China where the Chinese are credited with engineering
546-419: A minor force could seldom be maintained. A besieging army, encamped in possibly squalid field conditions and dependent on the countryside and its own supply lines for food, could very well be threatened with the disease and starvation intended for the besieged. To end a siege more rapidly, various methods were developed in ancient and medieval times to counter fortifications, and a large variety of siege engines
637-553: A popular spectacle for the local people by 1843, when 43,000 came to watch a field day laid on to test a method of assaulting earthworks for a report to the Inspector General of Fortifications. In 1869 the title of the Royal Engineers Establishment was changed to "The School of Military Engineering" (SME) as evidence of its status, not only as the font of engineer doctrine and training for the British Army , but also as
728-405: A rebellious Anatolian vassal in the 14th century BC ended when the queen mother came out of the city and begged for mercy on behalf of her people. The Hittite campaign against the kingdom of Mitanni in the 14th century BC bypassed the fortified city of Carchemish . If the main objective of a campaign was not the conquest of a particular city, it could simply be passed by. When the main objective of
819-403: A siege might be a surprise attack, attempting to overwhelm the defenders before they were ready or were even aware there was a threat. This was how William de Forz captured Fotheringhay Castle in 1221. The most common practice of siege warfare was to lay siege and just wait for the surrender of the enemies inside or, quite commonly, to coerce someone inside to betray the fortification. During
910-436: A siege progressed, the surrounding army would build earthworks (a line of circumvallation ) to completely encircle their target, preventing food, water, and other supplies from reaching the besieged city. If sufficiently desperate as the siege progressed, defenders and civilians might have been reduced to eating anything vaguely edible – horses, family pets, the leather from shoes, and even each other . The Hittite siege of
1001-631: A simple battering ram had come into use in the previous millennium, the Assyrians improved siege warfare and used huge wooden tower-shaped battering rams with archers positioned on top. In ancient China, sieges of city walls (along with naval battles) were portrayed on bronze 'hu' vessels , like those found in Chengdu , Sichuan in 1965, which have been dated to the Warring States period (5th to 3rd centuries BC). An attacker's first act in
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#17327807850911092-401: A technical discipline, the term civil engineering entered the lexicon as a way to distinguish between those specializing in the construction of such non-military projects and those involved in the older discipline. As the prevalence of civil engineering outstripped engineering in a military context and the number of disciplines expanded, the original military meaning of the word "engineering"
1183-460: A wheeled siege ramp with grappling hooks known as the Cloud Bridge (the protractible, folded ramp slinging forward by means of a counterweight with rope and pulley), and wheeled 'hook-carts' used to latch large iron hooks onto the tops of walls to pull them down. When enemies attempted to dig tunnels under walls for mining or entry into the city, the defenders used large bellows (the type
1274-406: 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 those 'engineers' who maintain, repair and operate vehicles, vessels, aircraft, weapon systems and equipment." Military engineering
1365-493: Is a military blockade of a city, or fortress , with the intent of conquering by attrition, or by well-prepared assault. Siege warfare (also called siegecraft or poliorcetics ) is a form of constant, low-intensity conflict characterized by one party holding a strong, static, defensive position. Consequently, an opportunity for negotiation between combatants is common, as proximity and fluctuating advantage can encourage diplomacy . A siege occurs when an attacker encounters
1456-594: Is an academic subject taught in military academies or schools of military engineering . The construction and demolition tasks related to military engineering are usually performed by military engineers including soldiers trained as sappers or pioneers . In modern armies, soldiers trained to perform such tasks while well forward in battle and under fire are often called combat engineers . In some countries, military engineers may also perform non-military construction tasks in peacetime such as flood control and river navigation works, but such activities do not fall within
1547-611: Is an example. Such military engineering feats would have been completely new, and probably bewildering and demoralizing, to the Gallic defenders. Vitruvius is the best known of these Roman army engineers, due to his writings surviving. Examples of battles before the early modern period where military engineers played a decisive role include the Siege of Tyre under Alexander the Great , the Siege of Masada by Lucius Flavius Silva as well as
1638-412: Is commonly listed under the role of combat engineers who demolitions expertise also includes mine and IED detection and disposal. For more information, see Bomb disposal . Military engineers are key in all armed forces of the world, and invariably found either closely integrated into the force structure, or even into the combat units of the national troops. Brazilian Army engineers can be part of
1729-421: Is known from Egyptian tomb reliefs of the 24th century BC, showing Egyptian soldiers storming Canaanite town walls on wheeled siege ladders. Later Egyptian temple reliefs of the 13th century BC portray the violent Siege of Dapur , a Syrian city, with soldiers climbing scale ladders supported by archers. Assyrian palace reliefs of the 9th to 7th centuries BC display sieges of several Near Eastern cities. Though
1820-639: Is now largely obsolete. In its place, the term "military engineering" has come to be used. In ancient times, military engineers were responsible for siege warfare and building field fortifications , temporary camps and roads. The most notable engineers of ancient times were the Romans and Chinese , who constructed huge siege-machines (catapults, battering rams and siege towers ). The Romans were responsible for constructing fortified wooden camps and paved roads for their legions . Many of these Roman roads are still in use today. The first civilization to have
1911-407: Is to build a line of earth-works, consisting of a rampart and trench, surrounding it. During the process of circumvallation, the attacking force can be set upon by another force, an ally of the besieged place, due to the lengthy amount of time required to force it to capitulate. A defensive ring of forts outside the ring of circumvallated forts, called contravallation, is also sometimes used to defend
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#17327807850912002-464: The Huo Long Jing , this manuscript of Jiao Yu recorded an earlier Song-era cast-iron cannon known as the 'flying-cloud thunderclap eruptor' (fei yun pi-li pao). The manuscript stated that ( Wade–Giles spelling): The shells ( phao ) are made of cast iron, as large as a bowl and shaped like a ball. Inside they contain half a pound of 'magic' gunpowder ( shen huo ). They are sent flying towards
2093-540: The Anglo-Zulu War , a collection of bridge-laying tanks, a Brennan torpedo and a Harrier jump jet . Military engineering 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
2184-719: The Battle of Alesia , the Roman legions created two huge fortified walls around the city. The inner circumvallation, 16 km (10 mi), held in Vercingetorix 's forces, while the outer contravallation kept relief from reaching them. The Romans held the ground in between the two walls. The besieged Gauls, facing starvation, eventually surrendered after their relief force met defeat against Caesar's auxiliary cavalry. The Sicarii Zealots who defended Masada in AD 73 were defeated by
2275-577: The Battle of the Trench under the suggestion of Salman the Persian to dig a trench. For about 600 years after the fall of the Roman empire , the practice of military engineering barely evolved in the west. In fact, much of the classic techniques and practices of Roman military engineering were lost. Through this period, the foot soldier (who was pivotal to much of the Roman military engineering capability)
2366-522: The Brazilian Air Force is occupied by engineers professionalized by Centro de Instrução e Adaptação da Aeronáutica (CIAAR) (Air Force Instruction and Adaptation Center) and trained, or specialized, by Instituto Tecnológico de Aeronáutica (ITA) (Aeronautics Institute of Technology). The Royal School of Military Engineering is the main training establishment for the British Army 's Royal Engineers . The RSME also provides training for
2457-481: The British Army in the conduct of siege operations and bridging. During this war low-ranking Royal Engineers officers carried out large-scale operations. They had under their command working parties of two or three battalions of infantry, two or three thousand men, who knew nothing in the art of siegeworks. Royal Engineers officers had to demonstrate the simplest tasks to the soldiers, often while under enemy fire. Several officers were lost and could not be replaced, and
2548-562: The Churchill AVRE . These and other dedicated assault vehicles were organised into the specialised 79th Armoured Division and deployed during Operation Overlord – 'D-Day'. Other significant military engineering projects of World War II include Mulberry harbour and Operation Pluto . Modern military engineering still retains the Roman role of building field fortifications , road paving and breaching terrain obstacles. A notable military engineering task was, for example, breaching
2639-730: The Indus Valley civilization were also fortified. By about 3500 BC, hundreds of small farming villages dotted the Indus River floodplain. Many of these settlements had fortifications and planned streets. The stone and mud brick houses of Kot Diji were clustered behind massive stone flood dikes and defensive walls, for neighbouring communities quarrelled constantly about the control of prime agricultural land. Mundigak (c. 2500 BC) in present-day south-east Afghanistan has defensive walls and square bastions of sun-dried bricks . City walls and fortifications were essential for
2730-655: The Piankhi stela , records how the Nubians laid siege to and conquered several Egyptian cities by using battering rams, archers, and slingers and building causeways across moats. During the Peloponnesian War , one hundred sieges were attempted and fifty-eight ended with the surrender of the besieged area. Alexander the Great 's army successfully besieged many powerful cities during his conquests. Two of his most impressive achievements in siegecraft took place in
2821-768: The Royal Navy , Royal Air Force , other Arms and Services of the British Army , Other Government Departments, and Foreign and Commonwealth countries as required. These skills provide vital components in the Army's operational capability, and Royal Engineers are currently deployed in Afghanistan , Iraq , Cyprus , Bosnia , Kosovo , Kenya , Brunei , Falklands , Belize , Germany and Northern Ireland . Royal Engineers also take part in exercises in Saudi Arabia , Kuwait , Italy, Egypt , Jordan , Canada, Poland and
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2912-479: The Siege of Tyre and the Siege of the Sogdian Rock . His engineers built a causeway that was originally 60 m (200 ft) wide and reached the range of his torsion-powered artillery, while his soldiers pushed siege towers housing stone throwers and light catapults to bombard the city walls. Most conquerors before him had found Tyre , a Phoenician island-city about 1 km (1,100 yd) from
3003-615: The State of Zhao , Handan , founded in 386 BC, also had walls that were 20 m (66 ft) wide at the base; they were 15 m (49 ft) tall, with two separate sides of its rectangular enclosure at a length of 1,400 m (1,530 yd). The cities of the Indus Valley Civilization showed less effort in constructing defences, as did the Minoan civilization on Crete . These civilizations probably relied more on
3094-523: The Suez Canal during the Yom Kippur War . Military engineers can come from a variety of engineering programs. They may be graduates of mechanical , electrical , civil , or industrial engineering . Modern military engineering can be divided into three main tasks or fields: combat engineering, strategic support, and ancillary support. Combat engineering is associated with engineering on
3185-526: The Vietnam War . Until the invention of gunpowder -based weapons (and the resulting higher-velocity projectiles), the balance of power and logistics definitely favored the defender. With the invention of gunpowder, cannon and mortars and howitzers (in modern times), the traditional methods of defense became less effective against a determined siege. Although there are numerous ancient accounts of cities being sacked, few contain any clues to how this
3276-546: The Yuan dynasty in 1271, was very effective, allowing the Mongols to sweep through large areas. Even if they could not enter some of the more well-fortified cities, they used innovative battle tactics to grab hold of the land and the people: By concentrating on the field armies, the strongholds had to wait. Of course, smaller fortresses, or ones easily surprised, were taken as they came along. This had two effects. First, it cut off
3367-681: The concentric castle from the period of the Crusades —and more dangerous to attackers—witness the increasing use of machicolations and murder-holes , as well the preparation of hot or incendiary substances . Arrowslits (also called arrow loops or loopholes), sally ports (airlock-like doors) for sallies and deep water wells were also integral means of resisting siege at this time. Particular attention would be paid to defending entrances, with gates protected by drawbridges , portcullises , and barbicans . Moats and other water defenses, whether natural or augmented, were also vital to defenders. In
3458-529: The early modern period , siege warfare dominated the conduct of war in Europe. Leonardo da Vinci gained some of his renown from design of fortifications. Medieval campaigns were generally designed around a succession of sieges. In the Napoleonic era , increasing use of ever more powerful cannons reduced the value of fortifications. In the 20th century, the significance of the classical siege declined. With
3549-483: The 14th-century development of gunpowder , new siege engines in the form of cannons appeared. Initially military engineers were responsible for maintaining and operating these new weapons just as had been the case with previous siege engines. In England, the challenge of managing the new technology resulted in the creation of the Office of Ordnance around 1370 in order to administer the cannons, armaments and castles of
3640-409: The 20th and 21st centuries, military engineering also includes CBRN defense and 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
3731-400: The Chinese commonly used in heating up a blast furnace for smelting cast iron ) to pump smoke into the tunnels in order to suffocate the intruders. Advances in the prosecution of sieges in ancient and medieval times naturally encouraged the development of a variety of defensive countermeasures. In particular, medieval fortifications became progressively stronger—for example, the advent of
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3822-578: The Corps of Royal Engineers and the development of military engineering. It also has a collection of paintings and a large collection of medals including 25 Victoria Crosses . Other items include a German V-2 rocket used during the Second World War , the map used by the Duke of Wellington during the Battle of Waterloo , a finial from the Mahdi's tomb , weapons used by Lieutenant John Chard during
3913-755: The European Middle Ages , virtually all large cities had city walls— Dubrovnik in Dalmatia is a well-preserved example—and more important cities had citadels , forts , or castles . Great effort was expended to ensure a good water supply inside the city in case of siege. In some cases, long tunnels were constructed to carry water into the city. Complex systems of tunnels were used for storage and communications in medieval cities like Tábor in Bohemia , similar to those used much later in Vietnam during
4004-741: The Quadro Complementar de Oficiais da Armada and the Quadro Complementar de Oficiais Fuzileiros Navais. Officers can come from the Centro de Instrução Almirante Wandenkolk (CIAW) (Admiral Wandenkolk Instruction Center) and the Escola Naval (EN) (Naval School) which, through internal selection of the Navy, finish their graduation at the Universidade de São Paulo (USP) (University of São Paulo) . The Quadro de Oficias Engenheiros of
4095-679: The Quadro de Engenheiros Militares, with its members trained or professionalized by the traditional Instituto Militar de Engenharia (IME) (Military Institute of Engineering) , or the Arma de Engenharia, with its members trained by the Academia Militar das Agulhas Negras (AMAN) (Agulhas Negras Military Academy). In the Brazil's Navy , engineers can occupy the Corpo de Engenheiros da Marinha,
4186-650: The Roman legions, who built a ramp 100 metres (330 ft) high up to the fortress's west wall. During the Roman–Persian Wars , siege warfare was extensively being used by both sides. In the Middle Ages, the Mongol Empire 's campaign against China (then comprising the Western Xia dynasty , Jin dynasty , and Southern Song dynasty ) by Genghis Khan until Kublai Khan , who eventually established
4277-782: The Southern Song Chinese held out against the enormous barrage of Mongol attacks. Much of this success in defense lay in the world's first use of gunpowder (i.e. with early flamethrowers , grenades , firearms , cannons, and land mines ) to fight back against the Khitans , the Tanguts , the Jurchens , and then the Mongols. The Chinese of the Song period also discovered the explosive potential of packing hollowed cannonball shells with gunpowder. Written later c. 1350 in
4368-480: The United States' history of warfare. The Army originally claimed engineers exclusively, but as the U.S. military branches expanded to the sea and sky, the need for military engineering sects in all branches increased. As each branch of the United States military expanded, technology adapted to fit their respective needs. Siege warfare A siege ( Latin : sedere , lit. 'to sit')
4459-663: The United States. The prevalence of military engineering in the United States dates back to the American Revolutionary War when engineers would carry out tasks in the U.S. Army. During the war, they would map terrain to and build fortifications to protect troops from opposing forces. The first military engineering organization in the United States was the Army Corps of Engineers. Engineers were responsible for protecting military troops whether using fortifications or designing new technology and weaponry throughout
4550-507: The ability of defenders to bring fire onto attacking enemies. Fort construction proliferated in 16th-century Europe based on the trace italienne design. By the 18th century, regiments of foot (infantry) in the British, French, Prussian and other armies included pioneer detachments. In peacetime these specialists constituted the regimental tradesmen, constructing and repairing buildings, transport wagons, etc. On active service they moved at
4641-556: The advent of mobile warfare , a single fortified stronghold is no longer as decisive as it once was. While traditional sieges do still occur, they are not as common as they once were due to changes in modes of battle, principally the ease by which huge volumes of destructive power can be directed onto a static target. Modern sieges are more commonly the result of smaller hostage, militant, or extreme resisting arrest situations. The Assyrians deployed large labour forces to build new palaces, temples, and defensive walls. Some settlements in
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#17327807850914732-496: The ancient Near East in historical sources and in art, there are very few examples of siege systems that have been found archaeologically. Of the few examples, several are noteworthy: The earliest representations of siege warfare have been dated to the Protodynastic Period of Egypt , c. 3000 BC . These show the symbolic destruction of city walls by divine animals using hoes. The first siege equipment
4823-568: The attack on Fort Eben-Emael in Belgium was conducted by Luftwaffe glider -deployed combat engineers. The need to defeat the German defensive positions of the " Atlantic wall " as part of the amphibious landings in Normandy in 1944 led to the development of specialist combat engineer vehicles. These, collectively known as Hobart's Funnies , included a specific vehicle to carry combat engineers,
4914-531: The attackers from outside. Ancient cities in the Middle East show archaeological evidence of fortified city walls . During the Warring States period of ancient China , there is both textual and archaeological evidence of prolonged sieges and siege machinery used against the defenders of city walls . Siege machinery was also a tradition of the ancient Greco-Roman world . During the Renaissance and
5005-438: The battlefield. Combat engineers are responsible for increasing mobility on the front lines of war such as digging trenches and building temporary facilities in war zones. Strategic support is associated with providing service in communication zones such as the construction of airfields and the improvement and upgrade of ports, roads and railways communication. Ancillary support includes provision and distribution of maps as well as
5096-676: The booty of his conquest undamaged, and retain his men and equipment intact, for the price of a well-placed bribe to a disgruntled gatekeeper. The Assyrian siege of Jerusalem in the 8th century BC came to an end when the Israelites bought them off with gifts and tribute, according to the Assyrian account, or when the Assyrian camp was struck by mass death, according to the Biblical account. Due to logistics, long-lasting sieges involving
5187-473: The campaign had been fulfilled, the Hittite army returned to Carchemish and the city fell after an eight-day siege. Disease was another effective siege weapon, although the attackers were often as vulnerable as the defenders. In some instances, catapults or similar weapons were used to fling diseased animals over city walls in an early example of biological warfare . If all else failed, a besieger could claim
5278-525: The defence of the first cities in the ancient Near East . The walls were built of mudbricks, stone, wood, or a combination of these materials, depending on local availability. They may also have served the dual purpose of showing potential enemies the might of the kingdom. The great walls surrounding the Sumerian city of Uruk gained a widespread reputation. The walls were 9.5 km (5.9 mi) in length, and up to 12 m (39 ft) in height. Later,
5369-466: The defence of their outer borders or sea shores. Unlike the ancient Minoan civilization, the Mycenaean Greeks emphasized the need for fortifications alongside natural defences of mountainous terrain, such as the massive Cyclopean walls built at Mycenae and other adjacent Late Bronze Age (c. 1600–1100 BC) centers of central and southern Greece. Although there are depictions of sieges from
5460-665: The demands on stored food and water. During the Warring States period in China (481–221 BC), warfare lost its honorable, gentlemen's duty that was found in the previous era of the Spring and Autumn period , and became more practical, competitive, cut-throat, and efficient for gaining victory. The Chinese invention of the hand-held, trigger-mechanism crossbow during this period revolutionized warfare, giving greater emphasis to infantry and cavalry and less to traditional chariot warfare. The philosophically pacifist Mohists (followers of
5551-536: The director of the Establishment, was keen to confirm his teaching, and regular exercises were held as demonstrations or as experiments to improve the techniques and teaching of the Establishment. From 1833 bridging skills were demonstrated annually by the building of a pontoon bridge across the Medway which was tested by the infantry of the garrison and the cavalry from Maidstone . These demonstrations had become
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#17327807850915642-448: The disposal of unexploded warheads. Military engineers construct bases, airfields, roads, bridges, ports, and hospitals. During peacetime before modern warfare, military engineers took the role of civil engineers by participating in the construction of civil-works projects. Nowadays, military engineers are almost entirely engaged in war logistics and preparedness. Explosives are defined as any system that produces rapidly expanding gases in
5733-821: The end of World War I , the standoff on the Western Front caused the Imperial German Army to gather experienced and particularly skilled soldiers to form "Assault Teams" which would break through the Allied trenches. With enhanced training and special weapons (such as flamethrowers ), these squads achieved some success, but too late to change the outcome of the war. In early WWII, however, the Wehrmacht "Pioniere" battalions proved their efficiency in both attack and defense, somewhat inspiring other armies to develop their own combat engineers battalions. Notably,
5824-408: The enemy camp from an eruptor ( mu phao ); and when they get there a sound like a thunder-clap is heard, and flashes of light appear. If ten of these shells are fired successfully into the enemy camp, the whole place will be set ablaze... During the Ming dynasty (AD 1368–1644), the Chinese were very concerned with city planning in regards to gunpowder warfare. The site for constructing the walls and
5915-432: The field, he was unable to capture Rome itself. The legionary armies of the Roman Republic and Empire are noted as being particularly skilled and determined in siege warfare. An astonishing number and variety of sieges, for example, formed the core of Julius Caesar 's mid-1st-century BC conquest of Gaul (modern France). In his Commentarii de Bello Gallico ( Commentaries on the Gallic War ), Caesar describes how, at
6006-441: The first night while laying siege to a city, the leader of the Mongol forces would lead from a white tent : if the city surrendered, all would be spared. On the second day, he would use a red tent: if the city surrendered, the men would all be killed, but the rest would be spared. On the third day, he would use a black tent: no quarter would be given. However, the Chinese were not completely defenseless, and from AD 1234 until 1279,
6097-403: The fortification's walls, could allow the attackers to fire down upon the defenders and also advance troops to the wall with less danger than using ladders. In addition to launching projectiles at the fortifications or defenders, it was also quite common to attempt to undermine the fortifications, causing them to collapse. This could be accomplished by digging a tunnel beneath the foundations of
6188-408: The greatest regard to economy. To reduce staff the NCOs and officers were responsible for instructing and examining the soldiers. If the men could not read or write they were taught to do so, and those who could read and write were taught to draw and interpret simple plans. The Royal Engineers Establishment quickly became the centre of excellence for all fieldworks and bridging. Captain Charles Pasley ,
6279-429: The head of marching columns with axes, shovels, and pickaxes, clearing obstacles or building bridges to enable the main body of the regiment to move through difficult terrain. The modern Royal Welch Fusiliers and French Foreign Legion still maintain pioneer sections who march at the front of ceremonial parades, carrying chromium-plated tools intended for show only. Other historic distinctions include long work aprons and
6370-409: The home of the museum in 1987. It was classed as Grade II listed on 5 December 1996. Its collection received ' Designated ' status in 1998 (it is recognised as having an outstanding collection of national and international significance). It is one of only three military or regimental museums in the country to hold this status. The museum and library hold over 500,000 objects relating to the history of
6461-443: The improbably high numbers which he used for both the Mongols and the defenders do give one a sense of the large numbers of machines used at a single siege. Another Mongol tactic was to use catapults to launch corpses of plague victims into besieged cities. The disease-carrying fleas from the bodies would then infest the city, and the plague would spread, allowing the city to be easily captured, although this transmission mechanism
6552-562: The kingdom. Both military engineers and artillery formed the body of this organization and served together until the office's successor, the Board of Ordnance was disbanded in 1855. In comparison to older weapons, the cannon was significantly more effective against traditional medieval fortifications . Military engineering significantly revised the way fortifications were built in order to be better protected from enemy direct and plunging shot. The new fortifications were also intended to increase
6643-553: The leading scientific military school in Europe. The dawn of the internal combustion engine marked the beginning of a significant change in military engineering. With the arrival of the automobile at the end of the 19th century and heavier than air flight at the start of the 20th century, military engineers assumed a major new role in supporting the movement and deployment of these systems in war. Military engineers gained vast knowledge and experience in explosives . They were tasked with planting bombs, landmines and dynamite . At
6734-540: The mainland, impregnable. The Macedonians built a mole , a raised spit of earth across the water, by piling stones up on a natural land bridge that extended underwater to the island, and although the Tyrians rallied by sending a fire ship to destroy the towers, and captured the mole in a swarming frenzy, the city eventually fell to the Macedonians after a seven-month siege. In complete contrast to Tyre, Sogdian Rock
6825-472: The medieval period, negotiations would frequently take place during the early part of the siege. An attacker – aware of a prolonged siege's great cost in time, money, and lives – might offer generous terms to a defender who surrendered quickly. The defending troops would be allowed to march away unharmed, often retaining their weapons. However, a garrison commander who was thought to have surrendered too quickly might face execution by his own side for treason. As
6916-417: The philosopher Mozi ) of the 5th century BC believed in aiding the defensive warfare of smaller Chinese states against the hostile offensive warfare of larger domineering states. The Mohists were renowned in the smaller states (and the enemies of the larger states) for the inventions of siege machinery to scale or destroy walls. These included traction trebuchet catapults , 8-foot (2.4 m) high ballistas ,
7007-428: The principal city from communicating with other cities where they might expect aid. Secondly, refugees from these smaller cities would flee to the last stronghold. The reports from these cities and the streaming hordes of refugees not only reduced the morale of the inhabitants and garrison of the principal city, it also strained their resources. Food and water reserves were taxed by the sudden influx of refugees. Soon, what
7098-511: The right to wear beards. In West Africa , the Ashanti army was accompanied to war by carpenters who were responsible for constructing shelters and blacksmiths who repaired weapons. By the 18th century, sappers were deployed in the Dahomeyan army during assaults against fortifications. The Peninsular War (1808–14) revealed deficiencies in the training and knowledge of officers and men of
7189-442: The scope of military engineering. The word engineer was initially used in the context of warfare, dating back to 1325 when engine’er (literally, one who operates an engine) referred to "a constructor of military engines". In this context, "engine" referred to a military machine, i. e., a mechanical contraption used in war (for example, a catapult ). As the design of civilian structures such as bridges and buildings developed as
7280-434: The siege was of a location on a coastline, from ships launched from the harbor of the location. The universal method for defending against siege is the use of fortifications, principally walls and ditches , to supplement natural features. A sufficient supply of food and water was also important to defeat the simplest method of siege warfare: starvation . On occasion, the defenders would drive 'surplus' civilians out to reduce
7371-634: The thickness of the walls in Beijing's Forbidden City were favoured by the Chinese Yongle Emperor (r. 1402–1424) because they were in pristine position to resist cannon volley and were built thick enough to withstand attacks from cannon fire. For more, see Technology of the Song dynasty . The introduction of gunpowder and the use of cannons brought about a new age in siege warfare. Cannons were first used in Song dynasty China during
7462-401: The use of deception or treachery to bypass defenses. Failing a military outcome, sieges can often be decided by starvation, thirst, or disease, which can afflict either the attacker or defender. This form of siege, though, can take many months or even years, depending upon the size of the stores of food the fortified position holds. The attacking force can circumvallate the besieged place, which
7553-534: The walls of Babylon , reinforced by towers, moats, and ditches, gained a similar reputation. In Anatolia , the Hittites built massive stone walls around their cities atop hillsides, taking advantage of the terrain. In Shang dynasty China, at the site of Ao, large walls were erected in the 15th century BC that had dimensions of 20 m (66 ft) in width at the base and enclosed an area of some 1,900 m (2,100 yd) squared. The ancient Chinese capital for
7644-534: The walls, and then deliberately collapsing or exploding the tunnel. This process is known as mining . The defenders could dig counter-tunnels to cut into the attackers' works and collapse them prematurely. Fire was often used as a weapon when dealing with wooden fortifications. The Roman Empire used Greek fire , which contained additives that made it hard to extinguish. Combined with a primitive flamethrower , it proved an effective offensive and defensive weapon. A sallying out might also occur with such weapons, or if
7735-438: The world's first known explosive, black powder . Initially developed for recreational purposes, black powder later was utilized for military application in bombs and projectile propulsion in firearms. Engineers in the military who specialize in this field formulate and design many explosive devices to use in varying operating conditions. Such explosive compounds range from black powder to modern plastic explosives. This particular
7826-656: Was achieved. Some popular tales existed on how the cunning heroes succeeded in their sieges. The best-known is the Trojan Horse of the Trojan War , and a similar story tells how the Canaanite city of Joppa was conquered by the Egyptians in the 15th century BC. The Biblical Book of Joshua contains the story of the miraculous Battle of Jericho . A more detailed historical account from the 8th century BC, called
7917-404: Was captured by stealthy attack. Alexander used commando-like tactics to scale the cliffs and capture the high ground, and the demoralized defenders surrendered. The importance of siege warfare in the ancient period should not be underestimated. One of the contributing causes of Hannibal 's inability to defeat Rome was his lack of siege engines , thus, while he was able to defeat Roman armies in
8008-434: Was developed for use by besieging armies. Ladders could be used to escalade over the defenses. Battering rams and siege hooks could also be used to force through gates or walls, while catapults , ballistae , trebuchets , mangonels , and onagers could be used to launch projectiles to break down a city's fortifications and kill its defenders. A siege tower , a substantial structure built to equal or greater height than
8099-664: Was largely replaced by mounted soldiers. It was not until later in the Middle Ages , that military engineering saw a revival focused on siege warfare. Military engineers planned castles and fortresses. When laying siege, they planned and oversaw efforts to penetrate castle defenses. When castles served a military purpose, one of the tasks of the sappers was to weaken the bases of walls to enable them to be breached before means of thwarting these activities were devised. Broadly speaking, sappers were experts at demolishing or otherwise overcoming or bypassing fortification systems. With
8190-587: Was not known at the time. In 1346, the bodies of Mongol warriors of the Golden Horde who had died of plague were thrown over the walls of the Crimean city of Kaffa (now Feodosiya ) during the Siege of Caffa . It has been speculated that this operation may have been responsible for the advent of the Black Death in Europe. The Black Death is estimated to have killed 30%–60% of Europe's population. On
8281-510: Was once a formidable undertaking became easy. The Mongols were then free to lay siege without interference of the field army, as it had been destroyed. At the siege of Aleppo , Hulagu used twenty catapults against the Bab al-Iraq ( Gate of Iraq ) alone. In Jûzjânî, there are several episodes in which the Mongols constructed hundreds of siege machines in order to surpass the number which the defending city possessed. While Jûzjânî surely exaggerated,
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