the Army clearly has the most slots available, so that part is a no-brainer IMO.
That said, look here:
http://www.google.com/search?q=US+Army+chiropractic&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
Thanks, for the link! I’ll pass it along.