The time of Stars Wars laser beams made possible by lithium ion battery packs on transportable platforms. Maybe we'll see the Gigafactory supplying DoD as well.
There was a multi-MW version in an aircraft intended to intercept missiles when they cleared the horizon. AFAIK, somewhat successful, but cancelled.
I'll be mounting one in my frunk. When i press the button, the frunk popps open and zzzzaps the slow moving ICE car blocking my lane :-€