Urban Warfare Operations are complicated by a three-dimensional environment, limited fields of view  because of buildings, enhanced concealment and cover for defenders, and the ease of placement of booby traps and snipers.  Unknown individuals hidden from view can slow emergency efforts and can increase the inherent dangers of tactical operations. …

A laser is a device that emits a beam of coherent light through an optical amplification process. Laser propulsion is any method of propelling a spacecraft that uses the energy of laser beams.   There are two main types of laser propulsion, depending on whether the laser is onboard or …