One reason the Military Services have trouble operating jointly is that
they don't speak the same language. For example, if you told Navy
personnel to "secure a building," they would turn off the lights and
lock the doors. The Army would occupy the building so no one could
enter. Marines would assault the building, capture it, and defend it
with suppressive fire and close combat. The Air Force, on the other
hand, would take out a three-year lease with an option to buy.