I would like to believe there are a few sane people left in the chain of command. They wont let this happen. Chances are very low.
Hopefully you're right, but I don't know.
We do have a white nationalist administration running the country (meaning they don't really care much about the lives of anyone outside of white Americans) and Trump probably wants a war to shore up his poll numbers, but like you said, hopefully there are some sane generals that would dead this.