Army of None: Autonomous Weapons and the Future of War

If you want an insight as to how warfare is changing this is the book. The author creates a framework in understanding how Automated, Semi-Autonomous, and Full-Autonomous weapons have played a role and are changing the way that warfare is conducted. For now, most military powers want to keep a human on the loop as much as possible, but as the speed of war changes, kicking the human out of the loop may come sooner than later.