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Force multiplication, in military usage, refers to an attribute or a combination of attributes which make a given force more effective than that same force would be without it. The expected size increase required to have the same effectiveness without that advantage is the multiplication factor. For example, if a certain technology like GPS enables a force to accomplish the same results of a force five times as large but without GPS, then the multiplier is five. Such estimates are used to justify an investment cost for force multipliers. A force multiplier refers to a factor that dramatically increases (hence "multiplies") the effectiveness of an item or group. Some common force multipliers are: : * Morale : * Technology : * Geographical features : * Weather : * Recruitment through diplomacy : * Training and experience : * Fearsome reputation : * Deception : * Military strategy, such as the Fabian strategy : * Military tactics, such as force concentration Some factors may influence one another, e.g. enhanced technology improving morale or geographical features allowing deception. It seems clear that force multiplication existed before anyone had a name for it. While the Mongols used swarming tactics coordinated by non-electronic communications, such simple tactics nevertheless made them notably effective. In the Middle Ages, stakes were often driven into the ground to protect archers from mounted men-at-arms. This is an example of "combined arms", a doctrinal development and another example of force multiplication. When World War I aviators first greeted their opponents with friendly waves, no one realized the multiplicative effect of tactical air reconnaissance. When commanders became aware of how powerful it could be, aviators started shooting at each other. This soon led to dogfights and anti-aircraft warfare. ==Doctrinal changes== In the First World War, the Germans experimented with what were called "storm tactics", where a small group of highly trained soldiers (stormtroopers) would open a salient through which much larger forces could penetrate. This met with only limited success, breaking through the first lines of defence but lacking the staying power to break the opposing forces entirely while the 1939 Blitzkrieg, which broke through with coordinated mechanized ground forces with aircraft in close support, was vastly more effective. Towards the end of World War II, the German army introduced kampfgruppe combat formations that were composed of whatever units happened to be available. Though poor quality ones generally constituted the major part of them, they often performed successfully because of their high degree of flexibility and adaptability. Mission-type tactics, as opposed to extremely specific directives that give no discretion to the junior commander, are widely used by modern militaries now due to their force multiplication. Originating from German concepts of ''Auftragstaktik'', these tactics may be developing even more rapidly in the concept of network-centric warfare, where subordinate commanders receive information not only from their own commanders, but from adjacent units. A different paradigm was one of the results of the theories of John Boyd, the "high-low mix" in which a large number of less expensive aircraft, coupled with a small number of extremely capable "silver bullet" aircraft, had the effect of a much larger force. Boyd's concept of quick action is based on the repeated application of the Boyd loop, consisting of the steps : *Observe: make use of the best sensors and other intelligence available : *Orient: put the new observations into a context with the old : *Decide: select the next action based on the combined observation and local knowledge : *Act: carry out the selected action, ideally while the opponent is still observing your last action. Boyd's concept is also known as the OODA Loop, and is a description of the decision-making process that Boyd contended applies to business, sports, law enforcement and military operations. Boyd's doctrine is widely taught in the American military, and one of the aims of network centric warfare is to get inside his OODA loop—that is, to go from observation to action before the enemy can get past orientation, preventing him from ever being able to make an effective decision or put it into action. Small unit leadership is critical to this, and NCW's ability to disseminate information to small unit leaders enables such tactics. Network-centric warfare can provide additional information and can help prevent friendly fire, but also allows swarm tactics and the seizing of opportunities by subordinate forces. These are a realization of Boyd's theories. defines " "a swarming case is any historical example in which the scheme of maneuver involves the convergent attack of five (or more) semiautonomous (or autonomous) units on a targeted force in some particular place. "Convergent" implies an attack from most of the points on the compass." Another version of "swarming" is evident in air-to-ground attack formations in which the attack aircraft do not approach from one direction, at one time, or at the same altitude, but schedule the attacks so each one requires a Boyd-style OODA iteration to deal with a new threat. Replacement training units (RTU) were "finishing schools" for pilots that needed to know not just the school solution, but the actual tactics being used in Vietnam. Referring to close air support, "In the RTU, new pilots learned the rules of the road for working with a Forward air controller (FAC). The hardest part was finding the small aircraft as it circled over the target area. The fast-moving fighters used directional finding/steering equipment to get close enough to the slow, low FAC until someone in the flight could get an eyeball on him—a tally-ho. Once the FAC was in sight, he would give the fighters a target briefing—type of target, elevation, attack heading, location of friendlies, enemy defensive fire, best egress heading if hit by enemy fire, and other pertinent data. Usually the fighters would set up a circle, called a wheel or wagon wheel, over the FAC, and wait for him to mark the target. Once the target was marked, the flight leader would attack first. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「force multiplication」の詳細全文を読む スポンサード リンク
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