Habu,
The dirty secret of the Marine Corps is that they are the true home of the Liberal Arts among the Armed Forces.
The Navy is focused on the back end of the Ship and the Air Force, well OK I meant to limit myself to military branches but still, they focus on Industrial Organization and Human Resource Management Theory like they believe that stuff and the Army has always been devoted to Engineering and Artillery as the fast tracks, although they would find Brains and then hide them until needed. A friend of mine 25 years ago was a damn good Officer of Marines and a French major at Berkeley.

A heard that study that examined the services by socio/economic background of the enlisted entrants had the following ranking.

1. Coast Guard, say what you want the quality of the Knee Deeps are
     outstanding.
2. The Marines, if you are going into a tough situation do it with the best.
3. The Air Force, it’s the best hospitality industry outfit out there.
4. The Navy, the Soviet troops mutinied and couldn’t get to Finland but the
     US Navy troops can do it all.
5. The Army, as an economist I know all the arguments for an all
     volunteer force and I still think that we should draft everyone for 6 months
     of training after the 17th birthday and then recruit a more middle class
     army by limiting non-service related scholarships.