The Art of Asymmetrical Warfare: Triumph of Tactics Over Might
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Guerrilla warfare, occurring between lightly armed partisans and a conventional army, is an example of asymmetrical warfare. Victory in war does not always go to the militarily superior force. Indeed, colonial powers have contended with asymmetrical threats since the rise of empires. In the 6th century BCE, Darius I of Persia, at the head of the largest and most powerful army in existence at the time, was checked by the Scythians, who possessed a smaller but far more mobile force. As recounted by Herodotus in Book IV of his History, the Scythians retreated before the main body of the Persian army, drawing it deeper into Scythian territory, only to launch lethal mounted strikes on Persian encampments. Darius was forced to retire, leaving the Scythians in command of the lands beyond the Danube River.
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In the modern era, Western powers fighting in developing countries have sometimes been defeated by local forces despite massive asymmetries in terms of conventional military strength. Colonial powers were forced to withdraw from Algeria, Indochina, and other areas not necessarily as a result of defeat in battle but because of their lack of will to sustain the war. In Vietnam a crushing defeat at the Battle of Dien Bien Phu in 1954 sapped the will of the French military, and, after some two decades of U.S. involvement in the Vietnam War, the social and political environments at home forced the United States to concede defeat and withdraw its forces. The insurgents in colonized countries often did not need to defeat the sometimes long-established colonizer but merely persuaded it to withdraw from the region. Asymmetries of both power and will were operating: the colonial powers possessed superior military resources but were sometimes reluctant or unable to bring them to bear.
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The value of asymmetrical tactics can be seen most clearly in guerrilla warfare – indeed, guerrilla means “little war” in Spanish. Guerrilla fighters are generally fewer in number and possess fewer and less-powerful weapons than the opposing force. Guerrilla tactics include ambush, avoiding open battle, cutting communication lines, and generally harassing the enemy. Guerrilla warfare has been practiced throughout history, and it includes both military operations carried out against the rear of an enemy’s army and operations carried out by a local population against an occupying force. The aim of the guerrilla fighter is erosion of the enemy’s will to sustain the costs of continuing the war. Henry Kissinger observed that “the guerilla wins if he does not lose. The conventional army loses if it does not win.”
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Although usually exercising a smaller force, guerrilla fighters, especially in urban areas, can be formidable adversaries to a conventional military. Guerrilla fighters typically do not inhabit large, well-established bases, making it impossible for their enemy to exploit technological advantages such as aerial bombardment to destroy personnel and infrastructure. If the guerrillas are in an urban area, their opponents cannot use powerful conventional weapons unless they are willing to inflict large numbers of civilian casualties and risk increasing popular support for the guerrillas. Small guerrilla or insurgent groups also tend to be less hierarchical, meaning that a force cannot be neutralized by the capture or death of a handful of leaders.
