Dead Hand: If there was ever a country and program that was closest to developing the real life Skynet, it was the Soviet Union during the Cold War. Dead Hand tells that story, a nuclear weapons launch system that is computer controlled in the event that no human is still alive to turn it off to ensure mutual destruction, along with many others. The book also goes in depth to the time the USSR caused a minor Anthrax outbreak and the time the sun was almost mistaken for a nuclear missile launch. If you want to read the true story of historical close calls, you'll love this book.
Area 51: An Uncensored History of America’s Top Secret Base: If you are going to look at books for governmental development of advanced technology for war including unmanned aerial vehicles (UAVs) or drones, you will have trouble finding a better book than Annie Jacobson's Area 51. She compiled the book using declassified documents providing you a rare glimpse into the development of projects like stealth aircraft, nuclear testing, nuclear engines and other experimental projects. Available in audio, digital and hard copy.
The Pentagon's Brain: An Uncensored History of DARPA, America's Top-Secret Military Research Agency : The US government is known for developing some amazing technology. This book uses declassified programs to tell that story covering the full spectrum of US capabilities. If real life Terminators ever exist it is likely to come out of the agency described in this book.
Skunkworks: While not directly related to AI or drones, this non-fiction book provides fascinating insight into the development of stealth technology and other aircraft developed by Lockheed-Martin. Development of aircraft that fly at 70,000+ feet, fly 3x the speed of sound and do other feats that some would consider impossible will play a role in the future of warfare. Available in audio, digital and hard copy.