chaplin = A member of the clergy attached to a branch of the armed forces.
Atheists have no religion there fore can not be part of the clergy.
Atheism is a religion.
They believe there is no God. Putting it in the affirmative, they believe that man is it. We’re the highest form of the species, and when we die, that’s it, we’re dead.
If you ask them to prove it, you get a bucket of nothing. It’s a faith. It’s a belief system like any other.
Agnosticism? Different, more honest animal.