A friend of mine in the Navy with a bit of whimsy said that the Army should become subordinate to the Air Force the same way that the Marine Corps is subordinate to the Navy. He felt the Air Force was getting the better deal.
Interesting culture piece there Sam - the Marines will be quick to point out there is a difference between the Navy as in the "Department of the Navy", and the Navy as in the Service - so whereas the two services fall under the same department in the DoD - as a service the Marines see the services as having parity in status - even if the Navy retains the larger budget and the sailors don't make the distinction. It may seem like a subtle nuance from the outside, but perspective matters

Best, Rob