Overview
A partisan is a member of an irregular military force formed to oppose control of an area by a foreign power or by an army of occupation by some kind of insurgent activity.
The term can apply to the field element of resistance movements. The most common use in present parlance in several languages refers to occupation resistance fighters during World War II, especially under the Yugoslav partisan leader Josip Broz Tito.
History before 1939
The initial concept of partisan warfare involved the use of troops raised from the local population in a war zone (or in some cases regular forces) who would operate behind enemy lines to disrupt communications, seize posts or villages as forward-operating bases, ambush convoys, impose war taxes or contributions, raid logistical stockpiles, and compel enemy forces to disperse and protect their base of operations.
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