Subject: Re: Proper appearance
"Today, at my direction, the era of unprofessional appearance is over. No more beardos ... if you don't meet the male-level physical standards for combat positions, cannot pass a PT test or don't want to shave and look professional, it's time for a new position."

Literally the ultimate "This could have been an email" meeting. Instead of spending tens of millions of dollars, and bearing the security risks, to pull the entire top command layer of the entire global U.S. military away from their posts and so they can physically be in a single room to hear the Secretary tell them "no beardos and no fatties."