All commanders should consider the professional development of their subordinates a principal responsibility of command. A leader without either interest in or knowledge of the history, the theory of warfare and the intellectual content of his profession is a leader in appearance only. Every marine has a basic responsibility to study the profession of arms on his own. One of the most knowledgeable that I have met is here with us tonight. His name is J.D. JuddJocko podcast number 363: Hear it now!