a violent attempt upon any person or thing, an assault, or the act of beginning a combat or dispute.

in the military art, is an effort made to force a post, break a body of troops, &c.

Attack of a siege, is a furious assault made by the besiegers with trenches, covers, mines, &c. in order to make themselves masters of a fortress, by storming one of its sides. If there are two or three attacks made at the same time, there should be a communication between them. See SIEGE.