Now imagine that is an American Global Hawk UAV, or Apache attack helicopter, or A-10 Warthog or even an F-35 Lightning. China's LW30 kilowatt laser can burn through 2mm of sheet steel imagine what it will do to aircraft aluminum or titanium or composite not to mention the canopy and the pilot's eyes if he was unlucky enough..... In the sky you can run but you can't hide from a laser it's just math and physics. The American Pentagon evidently sees such advanced Chinese weapons technology as a very real threat to their global military domination ambitions hence the reversal of diplomatic, diplomatic and academic policies in recent years. The US is really afraid of the Chinese.