Those mentioned drone strikes did not happen in a war zone. Here is an article about it for reference:
https://www.politico.com/blogs/under...laybook-226760
To answer your question, there are federal laws against murder. It’s your argument that a President is not immune to criminal prosecution for official acts of their duties. If that is the case, then Obama can and should be charged. What’s good for the goose is good for the gander.