I see that Trump appointed another billionaire to be Secretary of the Army.  

Only this one, Vincent Viola,  was the first member of his Italian-American family to graduate from a college.  In his case, West Point.  He then went on to  became Ranger qualified, served in the 101st Airborne and in the Army Reserve.   His father served in WWII.  

Then he made his money after graduating from NYU Law School.  He is now worth $1.8 Billion.

After 9/11 he helped found and fund as a private citizen, the "Combating Terrorism Center at West Point after the Sept. 11 attacks. The center describes itself as “an important national resource that rigorously studies the terrorist threat and provides policy-relevant research while moving the boundaries of academic knowledge.”

This is not taxpayer-supported.