A high energy laser gun is displayed at the International Defense Exhibition and Conference (IDEX) in Abu Dhabi, the United Arab Emirates, on Feb. 21, 2017. (Xinhua/Zhao Dingzhe)
A high energy laser gun is displayed at the International Defense Exhibition and Conference (IDEX) in Abu Dhabi, the United Arab Emirates, on Feb. 21, 2017. (Xinhua/Zhao Dingzhe)