The problem of rebranding that distorts perceptions of you nature in your initial favor is that unless you change to match the new name, you fail at your new mission/brand.
Having been renamed from the Department of War to the Department of Defense, many years later after the failure to "defend" America well on 9/11 (due to incompetence? or the nature of the Posse Comiatatus Act? or military industrial complex momentum?), the department decided to support creating a new department of defense, Department of Homeland Security, lest anyone get confused about the DoD's true mission and modus operandi (which is more along the lines of "the best defense is a good offense").
That was apparently preferrable to tackling the full mission of "Defense".
Having been renamed from the Department of War to the Department of Defense, many years later after the failure to "defend" America well on 9/11 (due to incompetence? or the nature of the Posse Comiatatus Act? or military industrial complex momentum?), the department decided to support creating a new department of defense, Department of Homeland Security, lest anyone get confused about the DoD's true mission and modus operandi (which is more along the lines of "the best defense is a good offense").
That was apparently preferrable to tackling the full mission of "Defense".