Paul Ford has spent a lot of time trawling through public presentations from the U.S. military. Like any other massive bureaucracy, they have made some truly inscrutable diagrams.
This is a graphic that defines a way of describing anything that has ever existed and everything that has ever happened, in any situation. The United States Military is operating at a conceptual level beyond every other school of thought except perhaps academic philosophy, because it has a much larger budget.
(Via Daring Fireball.)