But the U.S. military says there are times when the military cannot accommodate certain religious practices, "such as when those religious observations would interfere with the wear of proper military headgear or protective clothing or equipment."
Pretty much trumps everything. They can stay home if they wish.
Edit: You know "The Army of one" slogan. What are they going to change it to........"the army of one.... oh yeah... plus those two other homeless looking guys......"