“If you had to explain why the four major services could never work together,” Fleming said, “it’s because they all speak a different language. For example, if you needed to secure a building, the Navy would turn off the lights and lock the doors. The Air Force would sign a long-term lease or buy it outright. The Army would occupy the building and forbid entry to anyone else. And the Marines would assault the building and defend it to the death with suppressing fire and artillery support.”