A point d'appui (French for fulcrum), in military theory, is a location where troops are assembled prior to a battle.
Often a monument is erected to commemorate the point d'appui for notable battles.
In some battles there may be more than a single point d'appui.
[1] An example is the Catto Long Barrow in eastern Aberdeenshire, Scotland, which is located at the point d'appui of a historic battle between Vikings and Picts.
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