Showing several successful tests, shooting down incoming MORTARS (projectiles), and aircraft.
This video above shows the (truck mounted) Laser Weapon System known as HEL MD (High Energy Laser Mobile Device) in action at White Sands missile base in Alamagordo, New Mexico .
Full post on directed energy weapons here:
Article on the HEL MD mobile truck mounted laser:
More on the LaWS (laser weapon system) , also being fitted for US Navy ships: