Compare and contrast the Marine Corps with the Army: Excellent answer
I think this is well-stated. And while we’re on the topic, I heartily recommend Tom Ricks’s book Making the Corps. Extremely interesting and informative. I’m pretty sure Chris Argyris, who studied organizational learning, identified the USMC as a learning organization, and Ricks’s book provides some reasons why that is so. The book link is to inexpensive secondhand editions.