The commander cannot initiate it himself. No single person in the United States, that I know of (no access to classified info) can physically do it by themselve

The commander cannot initiate it himself. No single person in the United States, that I know of (no access to classified info) can physically do it by themselves. The commander would have to order someone else to do it at least. This is a huge component of the whole doctrine as far as I'm aware.