2 things I didn’t care For first. The drones, never explained how they were being refueled and rearmed. Most likely in a situation like that. Once the people on the Military bases, realized what they were doing, would not refuel and rearm them. Especially where they were actually attacking the bases were some of them started from.
The second thing is, the author did not thoroughly explore the effects of a E. M. P weapon. zit would be detonated above the atmosphere. There would be no radiation on earth from one. All they had to do was look at some YouTube videos. And maybe read the book ” One Second After” and he would have realized his mistake. There would have been no radiation on earth. Other than that I enjoyed it.