1. A zone-defense weapon system comprising: at least one surveillance and target-acquisition device for controlling a surveillance zone to detect an objective target entering into said surveillance zone; an attack device having at least one main projectile launch tube and at least one auxiliary launch tube, said at least one surveillance and target-acquisition device controlling actuation of the attack device in a direction of the objective target; wherein the at least one surveillance and target-acquisition device is a remote distance from the attack device, the surveillance zone being located in an action radius of the attack device, and wherein said at least one surveillance and target-acquisition device includes an auxiliary projectile that is fired from said at least one auxiliary launch tube of said attack device and lands within said surveillance zone, and said at least one main projectile is fired from said at least one main projectile launch tube and falls within the surveillance zone adjacent said at least one surveillance and target-acquisition device.