“The military services are but a part of the national machinery of peace or war. An effective national security policy calls for active, intimate and continuous relationships not alone between the military services themselves but also between the military services and many other departments and agencies of Government.” -- Ferdinand Eberstadt, former Chairman of the Army-Navy Munitions Board to his friend, James Forrestal, then Secretary of the Navy, and later first Secretary of Defense in a 1947 letter.