noun

an act of attacking or plundering.

protecting grain from the depredations of rats and mice

plundering,plunder,looting,pillaging,robbing,robbery,raiding,ravaging,sacking,sack,ransacking,devastation,laying waste,wreckage,destruction,damage,ravages,raids,acts of destruction,despoiling,despoliation,rape,rapine,ravin,spoliation,reaving