Drones will be the future of war fare. It’s logical proxy for putting oneself in the line of fire. Naturally, defence technology will be working overtime to counter this threat. One of the weapons developed for this is the laser, accurate enough to track a small drone and long enough to burn it out of the sky with it’s laser.
Great, but I think the laser is just for show because it is too easily detected (due to the energy radiation) and once detected, counter measure moves can effectively reduce the concentration of the energy beam to reduce it’s effectiveness.
Also, drone warfare will most probably employ swarms of drones rather than just the one. Imagine a master drone which deploys a cluster of drones upon reaching the strike zone all autonomous without the need for constant communication. It’s easy to see how challenging targeting these swarm weapons will become.