After 60 years of inquiry, the idea that the laser can be used as a weapon is now certain. Thanks to advancing technology, the laser can cut metals at certain thicknesses from miles away, by detecting the weakest point of the target, destroy land, air and sea vehicles. In particular, the US, Russia and China is in competition to gain a laser gun. It is possible to say that the United States, as the first country having invested in this technology, is at the top of the development of laser weapons. So how did the laser gun production come to the fore? What kind of weapons do these countries currently have?