Terminology and nomenclature, argot and cant, jargon and lingo
can be confusing. One reason the military has trouble
coordinating joint operations is that the different services
don't speak the same language.
For example, if Navy personnel were told to
"secure a building", they would, following a
checklist written on a clipboard, unplug the equipment, turn off
the lights, lock the doors, and depart.
Given the same instructions, Army personnel
would follow a checklist written in a notebook. They would occupy
the building, so that no one could enter, and nothing could
In execution of the same instructions, and following a plan
written on the palm of their hands, Marines
would assault the building, capture it by close combat, and
defend it with suppressive fire.
The Air Force, on the other hand, following a
protocol printed on a portable computer, would "secure a
building" by taking out a three-year lease on it, with
an option to buy.