Raid (military)

A raid is a military tactic whereby a sudden attack is effected by a small group behind enemy lines. A raiding group may comprise of personnel specially trained in this tactic (such as commandos or guerilla fighters), regular soldiers, or any organized group of combatants. Raids have a specific purpose and are not normally intended to capture and hold terrain, but instead finish with the raiding force quickly retreating to a previous defended position prior to the enemy forces being able to respond in a co-ordinated manner or formulate a counterattack.
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