Entrenchment, Entrenched or Entrench may refer to:
The Battle of Cold Harbor was fought during the American Civil War near Mechanicsville, Virginia, from May 31 to June 12, 1864, with the most significant fighting occurring on June 3. It was one of the final battles of Union Lt. Gen. Ulysses S. Grant's Overland Campaign, and is remembered as one of American history's bloodiest, most lopsided battles. Thousands of Union soldiers were killed or wounded in a hopeless frontal assault against the fortified positions of Confederate Gen. Robert E. Lee's army.
An entrenched river, or entrenched stream is a river or stream that flows in a narrow trench or valley cut into a plain or relatively level upland. Because of lateral erosion streams flowing over gentle slopes over a time develops meandering course. Meanders form where gradient is very gentle, for example in floodplain and delta. Meandering is the feature of the middle and final course of the river. But very deep and wide meanders can also be found cutting hard rocks. Such meanders are called incised or entrenched meanders. The exception is that entrenched meanders are formed during the upliftment of land where river is young. They widen and deepen over time and can be found as deep gorges or canyons in hard rock. In the case of or either an entrenched stream or river, it is often presumed that the watercourse has inherited its course by cutting down into bedrock from a pre-existing plain with little modification of the original course. The down-cutting of the river system could be the result not only of tectonic uplift but also of other factors such as river piracy, decrease of load, increase of runoff, extension of the drainage basin, or change in base level such as a fall in sea level. General, nongeneric terminology for either a river or stream that flows in a narrow trench or valley, for which evidence of a preexisting plain or relatively level upland can be either absent or present is either valley meander or meander valley with the latter term being preferred in literature.
Trench warfare is the type of land warfare using occupied lines largely comprising military trenches, in which troops are well-protected from the enemy's small arms fire and are substantially sheltered from artillery. It became archetypically associated with World War I (1914–1918), when the Race to the Sea rapidly expanded trench use on the Western Front starting in September 1914.
A defensive fighting position (DFP) is a type of earthwork constructed in a military context, generally large enough to accommodate anything from one soldier to a fire team.
Enfilade and defilade are concepts in military tactics used to describe a military formation's exposure to enemy fire. A formation or position is "in enfilade" if weapon fire can be directed along its longest axis. A unit or position is "in defilade" if it uses natural or artificial obstacles to shield or conceal itself from enfilade and hostile fire. The strategies, named by the English during the Hundred Years' War, use the French enfiler and défiler spoken by English nobility of the time.
An entrenched clause or entrenchment clause of a constitution is a provision that makes certain amendments either more difficult or impossible to pass. Overriding an entrenched clause may require a supermajority, a referendum, or the consent of the minority party. The term eternity clause is used in a similar manner in the constitutions of Brazil, the Czech Republic, Germany, Greece, India, Iran, Italy, Morocco, Norway, and Turkey, but specifically applies to an entrenched clause that can never be overridden. However, if a constitution provides for a mechanism of its own abolition or replacement, like the German Basic Law does in Article 146, this by necessity provides a "back door" for getting rid of the "eternity clause", too.
The London Defence Positions were a late 19th-century scheme of earthwork fortifications in the southeast of England, designed to protect London from foreign invasion landing on the south coast. The positions were a carefully surveyed contingency plan for a line of entrenchments, which could be quickly excavated in a time of emergency.
The Battle of Tel El Kebir was fought on 13 September 1882 at Tell El Kebir in Egypt, 110 km north-north-east of Cairo. An entrenched Egyptian force under the command of Ahmed ʻUrabi was defeated by a British army led by Garnet Wolseley, in a sudden assault preceded by a march under cover of darkness. The battle was the decisive engagement of the Anglo-Egyptian War.
An entrenching tool (U.K.), intrenching tool (U.S.), E-tool, or trenching tool is a digging tool used by military forces for a variety of military purposes. Survivalists, campers, hikers and other outdoors groups have found it to be indispensable in field use. Modern entrenching tools are usually collapsible and made using steel, aluminum, or other light metals.
The Koningshooikt—Wavre Line, abbreviated to KW Line and often known as the Dyle Line after the Dijle (Dyle) river, was a 60 kilometres (37 mi)-long fortified line of defence prepared by the Belgian Army between Koningshooikt and Wavre which was intended to protect Brussels from a possible German invasion. Construction on the KW Line began in September 1939 after World War II had begun but while Belgium itself remained a neutral state. It was subsequently extended southwards from Wavre towards Namur. The line itself consisted of bunkers, anti-tank ditches, and barricades including so-called Cointet-elements and played a key role in Allied strategy during the German invasion of Belgium in May 1940. However, its role in the actual fighting was ultimately minimal. In 2009 an inventory of surviving emplacements was begun.
Management is a type of labor with a special role of coordinating the activities of inputs and carrying out the contracts agreed among inputs, all of which can be characterized as "decision making". Managers usually face disciplinary forces by making themselves irreplaceable in a way that the company would lose without them. A manager has an incentive to invest the firm's resources in assets whose value is higher under him than under the best alternative manager, even when such investments are not value-maximizing.
Frank D. Peregory (1916-1944) was a United States Army technical sergeant who posthumously received the United States military's highest decoration for bravery in combat, the Medal of Honor, for his actions during World War II. In a previous incident, he also received the Soldier's Medal for rescuing another soldier from drowning.
Field entrenchment is the activity of provision of cover and concealment, usually by the infantry arm of service, possibly with assistance from combat engineers or sappers. The entrenched position is intended to be a temporary one, taking maybe a day to create and to be held for no more than a week. However, during World War I these entrenched positions were progressively made more sophisticated over longer periods, leading to their evolution into tactical, operational and strategic stalemates and the emergence of trench warfare.
A trench is a narrow depression in the ground.
A schanze is, according to the specialist terminology of German fortification construction, an independent fieldwork, that is frequently used in the construction of temporary field fortifications. The word is German and has no direct English equivalent, although the word sconce is derived from Dutch schans, which is cognate to the German word.
The Coloured vote constitutional crisis, also known as the Coloured vote case, was a constitutional crisis that occurred in the Union of South Africa during the 1950s as the result of an attempt by the Nationalist government to remove coloured voters in the Union's Cape Province from the common voters' rolls. It developed into a dispute between the judiciary and the other branches of government over the power of Parliament to amend an entrenched clause in the South Africa Act and the power of the Appellate Division to overturn the amendment as unconstitutional. The crisis ended when the government enlarged the Senate and altered its method of election, allowing the amendment to be successfully enacted.
The Basic Laws of Israel are thirteen quasi-constitutional laws of the State of Israel, and some of them can only be changed by a supermajority vote in the Knesset. Many of these laws are based on the individual liberties that were outlined in the Israeli Declaration of Independence. The Basic Laws deal with the formation and role of the principal institutions of the state, and with the relations between the state's authorities. They also protect the country's civil rights, although some of these rights were earlier protected at common law by the Supreme Court of Israel. The Basic Law: Human Dignity and Liberty enjoys super-legal status, giving the Supreme Court the authority to disqualify any law contradicting it, as well as protection from Emergency Regulations.
In fortification, the term entrenchment can refer to either a secondary line of defence within a larger fortification, or an enceinte designed to provide cover for infantry, having a layout similar to a city wall but on a smaller scale. The latter usually consisted of curtain walls and bastions or redans, and was sometimes also protected by a ditch.