Skyguard is a chemical laser-based area defense system proposed by Northrop Grumman, to protect airports and other areas against a variety of military threats including short-range ballistic missiles, short- and long-range rockets, artillery shells, mortars, unmanned aerial vehicles and cruise missiles. Each shot costs about $1,000 which represents the cost of consumable chemicals. See also Tactical High Energy Laser, a joint American-Israeli laser system for missile defense. Iron Dome, missile system deployed in Israel Skyshield, Swiss short range air defence system References External links Northrop Grumman Develops Skyguard Laser Defense System For Local Defense Popular Science Reviews Skyguard - With Video Popular Science Military lasers Missile defense