The US military has developed plans to build a laser air defense system to protect US troops from UAV Aircraft. The Laser Weapon System or LaWS is a . Subscribe: Other videos: The US military has developed plans to build a laser air defense system to protect US troops from UAV Aircraft. The Laser Weapon System or LaWS is a . New us air force UAV made to kill russian s-400 air defence The General Atomics Avenger (formerly Predator C) is a developmental unmanned combat air .