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Loss Exchange Ratio
Loss exchange ratio is a figure of merit in attrition warfare. It is usually relevant to a condition or state of war where one side depletes the resources of another through attrition. Specifically and most often used as a comparator in aerial combat, where it is known as a kill-ratio. Historical applications Loss exchange ratio has played a significant role in past wars, especially those that have devolved into stalemate and become wars of attrition. For example, the German objective at the Battle of Verdun (1916) during World War I was not the seizure of any strategic objective, but rather to inflict an LER of 2:1 on the French forces and thereby cripple the French army. During the First Indochina War, Võ Nguyên Giáp, the leader of the Việt Minh, told his French opposite number that "you can kill ten of my men for every one I kill of yours, and at that rate, I will still triumph." In fact, the LER was approximately 3:1 in favor of the French, and they did indeed withdraw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Figure Of Merit
A figure of merit is a quantity used to characterize the performance of a device, system or method, relative to its alternatives. Examples *Clock rate of a CPU * Calories per serving *Contrast ratio of an LCD *Frequency response of a speaker * Fill factor of a solar cell *Resolution of the image sensor in a digital camera *Measure of the detection performance of a sonar system, defined as the propagation loss for which a 50% detection probability is achieved *Noise figure of a radio receiver *The thermoelectric figure of merit, ''zT'', a material constant proportional to the efficiency of a thermoelectric couple made with the material *The figure of merit of digital-to-analog converter, calculated as (power dissipation)/(2ENOB × effective bandwidth) /Hz*Luminous efficacy of lighting * Profit of a company *Residual noise remaining after compensation in an aeromagnetic survey *Battery life of a laptop computer [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attrition Warfare
Attrition warfare is a military strategy consisting of belligerent attempts to win a war by wearing down the enemy to the point of collapse through continuous losses in personnel and materiel. The word ''attrition'' comes from the Latin root , meaning "to rub against", similar to the "grinding down" of the opponent's forces in attrition warfare. Strategic considerations Attrition warfare represents an attempt to grind down an opponent's ability to make war by destroying their military resources by any means including guerrilla warfare, people's war, scorched earth and all kind of battles apart from a decisive battle. Attrition warfare does not include all kinds of Blitzkrieg or using concentration of force and a decisive battle to win. The side that reinforces their army at a higher speed will normally win the war. Clausewitz called it the exhaustion of the adversary. A side that perceives itself to be at a marked disadvantage may deliberately seek out attrition warfare to neutr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stalemate
Stalemate is a situation in the game of chess where the player whose turn it is to move is not in check and has no legal move. Stalemate results in a draw. During the endgame, stalemate is a resource that can enable the player with the inferior position to draw the game rather than lose. In more complex positions, stalemate is much rarer, usually taking the form of a swindle that succeeds only if the superior side is inattentive. Stalemate is also a common theme in endgame studies and other chess problems. The outcome of a stalemate was standardized as a draw in the 19th century. Before this standardization, its treatment varied widely, including being deemed a win for the stalemating player, a half-win for that player, or a loss for that player; not being permitted; and resulting in the stalemated player missing a turn. Stalemate rules vary in other games of the chess family. Etymology and usage The first recorded use of stalemate is from 1765. It is a compounding of Middl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Verdun
The Battle of Verdun (french: Bataille de Verdun ; german: Schlacht um Verdun ) was fought from 21 February to 18 December 1916 on the Western Front in France. The battle was the longest of the First World War and took place on the hills north of Verdun-sur-Meuse. The German 5th Army attacked the defences of the Fortified Region of Verdun (RFV, ) and those of the French Second Army on the right (east) bank of the Meuse. Using the experience of the Second Battle of Champagne in 1915, the Germans planned to capture the Meuse Heights, an excellent defensive position, with good observation for artillery-fire on Verdun. The Germans hoped that the French would commit their strategic reserve to recapture the position and suffer catastrophic losses at little cost to the German infantry. Poor weather delayed the beginning of the attack until 21 February but the Germans captured Fort Douaumont in the first three days. The advance then slowed for several days, despite inflicting many F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Indochina War
The First Indochina War (generally known as the Indochina War in France, and as the Anti-French Resistance War in Vietnam) began in French Indochina from 19 December 1946 to 20 July 1954 between France and Việt Minh (Democratic Republic of Vietnam), and their respective allies. Việt Minh was led by Võ Nguyên Giáp and Hồ Chí Minh. Most of the fighting took place in Tonkin in Northern Vietnam, although the conflict engulfed the entire country and also extended into the neighboring French Indochina protectorates of Laos and Cambodia. At the Potsdam Conference in July 1945, the Combined Chiefs of Staff decided that Indochina south of latitude 16° north was to be included in the Southeast Asia Command under British Admiral Mountbatten. The Japanese forces located south of that line surrendered to him and those to the north surrendered to Generalissimo Chiang Kai-shek. In September 1945, Chinese forces entered Tonkin, and a small British task force landed at city of S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Võ Nguyên Giáp
Võ Nguyên Giáp (; 25 August 1911 – 4 October 2013) was a Vietnamese general and communist politician who is regarded as having been one of the greatest military strategists of the 20th century. He served as interior minister in President Hồ Chí Minh's Việt Minh government, the military commander of the Việt Minh, the commander of the People's Army of Vietnam (PAVN), minister of defence, and deputy prime minister. He also served as a member of the Politburo of the Vietnam Workers' Party, which in 1976 became the Communist Party of Vietnam. Giáp first rose to prominence during World War II, when he served as the military leader of the Viet Minh resistance against the Japanese occupation of Vietnam. He had no direct military training and was a history teacher at a French-speaking academy, influenced by historical military leaders and personally citing T. E. Lawrence and Napoleon as his two greatest influences. He later earned the moniker "Red Napoleon" from some Wester ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Việt Minh
The Việt Minh (; abbreviated from , chữ Nôm and Hán tự: ; french: Ligue pour l'indépendance du Viêt Nam, ) was a national independence coalition formed at Pác Bó by Hồ Chí Minh on 19 May 1941. Also known as the Việt Minh Front, it was created by the Indochinese Communist Party as a national united front to achieve the independence of the Democratic Republic of Vietnam. The was previously formed by Hồ Học Lãm in Nanjing, China, at some point between August 1935 and early 1936, when Vietnamese nationalist parties formed an anti-imperialist united front. This organization soon lapsed into inactivity, only to be appropriated by the Indochinese Communist Party (ICP) and Hồ Chí Minh in 1941. The Việt Minh established itself as the only organized anti-French and anti-Japanese resistance group. The Việt Minh initially formed to seek independence for Vietnam from the French Empire. The United States supported France. When the Japanese occupation began, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interdiction
Interdiction is a military term for the act of delaying, disrupting, or destroying enemy forces or supplies en route to the battle area. A distinction is often made between strategic and tactical interdiction. The former refers to operations whose effects are broad and long-term; tactical operations are designed to affect events rapidly and in a localized area. Other uses The term interdiction is also used in criminology and law enforcement, such as in the U.S. War on Drugs and in immigration. Espionage United States The term interdiction is also used by the NSA when an electronics shipment is secretly intercepted by an intelligence agency (domestic or foreign) for the purpose of implanting bugs before they reach their destination. According to ''Der Spiegel'', the NSA's TAO group is able to divert shipping deliveries to its own "secret workshops" in a method called interdiction, where agents load malware onto the electronics or install malicious hardware that can give US int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civilian Casualty Ratio
In armed conflicts, the civilian casualty ratio (also civilian death ratio, civilian-combatant ratio, etc.) is the ratio of civilian casualties to combatant casualties, or total casualties. The measurement can apply either to casualties inflicted by or to a particular belligerent, casualties inflicted in one aspect or arena of a conflict or to casualties in the conflict as a whole. Casualties usually refer to both dead and injured. In some calculations, deaths resulting from famine and epidemics are included. Starting in the 1980s, it was often claimed that 90 percent of the victims of modern wars were civilians, repeated in academic publications as recently as 2014. These claims, though widely believed, are not supported by detailed examination of the evidence, particularly that relating to wars (such as those in former Yugoslavia and in Afghanistan) that are central to the claims. Some of the citations can be traced back to a 1991 monograph from Uppsala University which includes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attrition Warfare
Attrition warfare is a military strategy consisting of belligerent attempts to win a war by wearing down the enemy to the point of collapse through continuous losses in personnel and materiel. The word ''attrition'' comes from the Latin root , meaning "to rub against", similar to the "grinding down" of the opponent's forces in attrition warfare. Strategic considerations Attrition warfare represents an attempt to grind down an opponent's ability to make war by destroying their military resources by any means including guerrilla warfare, people's war, scorched earth and all kind of battles apart from a decisive battle. Attrition warfare does not include all kinds of Blitzkrieg or using concentration of force and a decisive battle to win. The side that reinforces their army at a higher speed will normally win the war. Clausewitz called it the exhaustion of the adversary. A side that perceives itself to be at a marked disadvantage may deliberately seek out attrition warfare to neutr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Body Count
A body count is the total number of people killed in a particular event. In combat, a body count is often based on the number of confirmed kills, but occasionally only an estimate. Often used in reference to military combat, the term can also refer to any situation involving multiple killings, such as the actions of death squads or serial killers. The military gathers such figures for a variety of reasons, such as determining the need for continuing operations, estimating efficiency of new and old weapons systems, and planning follow-up operations. The term has since been used to describe the number of sexual partners a person has engaged with. Military use Body count figures have a long history in military planning and propaganda. Sassanian Empire According to Procopius, when the Persians were about to march to a war, the king would sit on the throne and many baskets would be set before him. The men of the army would pass along the baskets one by one, each throwing one arro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casualty Estimation
Casualty estimation often refers to the process of statistically estimating the number of injuries or deaths in a battle or natural disaster that has already occurred. Estimates based on detailed information on individual deaths, but also extending to statistical extrapolations, became known as casualty recording in the early twenty-first century. Casualty prediction is the process of estimating the number of injuries or deaths that might occur in a planned or potential battle or natural disaster. Measures used to imply casualties include: * Reported number of kills * Number of enemy individual weapons captured after engagement * Number of tanks and aircraft lost * Remote sensing of mass graves Methods Measurement and signature intelligence alone cannot give a reasonable estimate of casualties. What Spectroscopic MASINT can do is help find mass graves. Geophysical MASINT can help localize metal and possibly bodies at that site. TECHINT is needed if there are weapons or artifacts t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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