Yes, it is correct. AN atheist cannot be a religious leader because they do not believe in any religion. It simply isn't possible, and anyone trying to become a religious leader while being an atheist is a fraud and should be brought up on charges for...well something. America is not the Netherlands, Belgium, or Canada. I couldn't care less how they do things in their military or country as a whole.
This, btw, should be the focus of this thread, not the demographic breakdown of the religious leaders in the military and the unfortunate fact that sometimes there is one person on a base that doesn't have a dedicated preacher for their faith. That's really a totally separate issue.
Regarding Buddhists, as I've said before I am pretty ignorant about them. I, again stated before, always thought that was more of a philosophy than a religion.
EDIT: That part about America vs the other countries comes across as snippy when I re-read it. I apologize, I really didn't mean it to sound like that. That said, I cannot think of how to reword it...