Polygonal fortA polygonal fort is a type of fortification originating in France in the late 18th century and fully developed in Germany in the first half of the 19th century. Unlike earlier forts, polygonal forts had no bastions, which had proved to be vulnerable. As part of ring fortresses, polygonal forts were generally arranged in a ring around the place they were intended to protect, so that each fort could support its neighbours.
BermA berm is a level space, shelf, or raised barrier (usually made of compacted soil) separating areas in a vertical way, especially partway up a long slope. It can serve as a terrace road, track, path, a fortification line, a border/separation barrier for navigation, good drainage, industry, or other purposes. The word is one of Middle Dutch and came into usage in English via French. In medieval military engineering, a berm (or berme) was a level space between a parapet or defensive wall and an adjacent steep-walled ditch or moat.
Czechoslovak border fortificationsCzechoslovakia built a system of border fortifications as well as some fortified defensive lines inland, from 1935 to 1938 as a defensive countermeasure against the rising threat of Nazi Germany. The objective of the fortifications was to prevent the taking of key areas by an enemy—not only Germany but also Hungary and Poland—by means of a sudden attack before the mobilization of the Czechoslovak Army could be completed, and to enable effective defense until allies—Britain and France, and possibly the Soviet Union—could help.
MoziMozi (ˈmoʊˈtsiː; ˈmoʊˈtsuː; Latinized as Micius ˈmɪsiəs; 470 – 391 BCE), original name Mo Di (), was a Chinese philosopher who founded the school of Mohism during the Hundred Schools of Thought period (the early portion of the Warring States period, 475–221 BCE). The ancient text Mozi contains material ascribed to him and his followers. Mozi taught that everyone is equal in the eyes of heaven. He believed that the decision of who is in power should be based on meritocracy, or those who are worthy of power should receive power.
Military scienceMilitary science is the study of military processes, institutions, and behavior, along with the study of warfare, and the theory and application of organized coercive force. It is mainly focused on theory, method, and practice of producing military capability in a manner consistent with national defense policy. Military science serves to identify the strategic, political, economic, psychological, social, operational, technological, and tactical elements necessary to sustain relative advantage of military force; and to increase the likelihood and favorable outcomes of victory in peace or during a war.
PalisadeA palisade, sometimes called a stakewall or a paling, is typically a row of closely placed, high vertical standing tree trunks or wooden or iron stakes used as a fence for enclosure or as a defensive wall. Palisades can form a stockade. Palisade derives from pale, from the Latin word , meaning stake, specifically when used side by side to create a wood defensive wall. Typical construction consisted of small or mid-sized tree trunks aligned vertically, with as little free space in between as possible.
CarcassonneCarcassonne (ˌkɑːrkəˈsɒn, also US-ˈsɔːn,_-ˈsoʊn, kaʁkasɔn, kaχkaˈsɔnə; Carcassona kaɾkaˈsunɔ; Carcaso) is a French fortified city in the department of Aude, region of Occitania. It is the prefecture of the department. Inhabited since the Neolithic, Carcassonne is located in the plain of the Aude between historic trade routes, linking the Atlantic to the Mediterranean Sea and the Massif Central to the Pyrénées. Its strategic importance was quickly recognized by the Ancient Romans, who occupied its hilltop until the demise of the Western Roman Empire.
Magazine (artillery)A magazine is an item or place within which ammunition or other explosive material is stored. The word is taken originally from the Arabic word makhāzin (مخازن), meaning "storehouses", via Italian and Middle French. The term is also used for an ammunition dump, a place where large quantities of ammunition are stored for later distribution. This usage is less common. In the early history of tube artillery drawn by horses (and later by mechanized vehicles), ammunition was carried in separate unarmored wagons or vehicles.
RevetmentA revetment in stream restoration, river engineering or coastal engineering is a facing of impact-resistant material (such as stone, concrete, sandbags, or wooden piles) applied to a bank or wall in order to absorb the energy of incoming water and protect it from erosion. River or coastal revetments are usually built to preserve the existing uses of the shoreline and to protect the slope. In military engineering it is a structure formed to secure an area from artillery, bombing, or stored explosives.
GabionA gabion (from Italian gabbione meaning "big cage"; from Italian gabbia and Latin cavea meaning "cage") is a cage, cylinder or box filled with rocks, concrete, or sometimes sand and soil for use in civil engineering, road building, military applications and landscaping. For erosion control, caged riprap is used. For dams or in foundation construction, cylindrical metal structures are used. In a military context, earth- or sand-filled gabions are used to protect sappers, infantry, and artillerymen from enemy fire.
