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Artillery battery
In military organizations, an artillery battery is a unit of guns, mortars, rockets or missiles so grouped in order to facilitate better battlefield communication and command and control, as well as to provide dispersion for its constituent gunnery crews and their systems. The term is also used in a naval context to describe groups of guns on warships.
==Land usage==
Historically the term "battery" referred to a cluster of cannon in action as a group, either in a temporary field position during a battle or at the siege of a fortress or a city. Such batteries could be a mixture of cannon, howitzer, or mortar types. A siege could involve many batteries at different sites around the besieged place. The term also came to be used for a group of cannon in a fixed fortification, for coastal or frontier defence. During the 18th century "battery" began to be used as an organizational term for a permanent unit of artillery in peace and war, although horse artillery sometimes used "troop" and fixed position artillery "company". They were usually organised with between six and 12 ordnance pieces, often including cannon and howitzers. By the late 19th century "battery" had become standard mostly replacing company or troop.
In the 20th century the term was generally used for the company level sub-unit of an artillery branch including field, air-defence, anti-tank and position (coastal and frontier defences). Artillery operated target acquisition emerged during the First World War and were also grouped into batteries and have subsequently expanded to include the complete intelligence, surveillance, target acquisition and reconnaissance (ISTAR) spectrum. 20th-century firing batteries have been equipped with mortars, guns, howitzers, rockets and missiles.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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