We all know that the armed forces have their own private language. Ten years after you’re out of the green (or blue) bag, all the acronyms have changed, and you are officially what is termed an “olde farte,” entitled to be addressed in a venerating tone of voice as “sir” by all the peach fuzz-faced young punk privates standing around on Armed Forces Day to show you where the closet porta-potty is.

The differences in language don’t end with acronyms, either. Via our good friends at military.com we learn that:

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.