Military command staff occupations

thumb|An 1843 illustration of a First French Empire|French aide-de-camp (right) assisting a général de division (centre) during the [[Napoleonic Wars]] An aide-de-camp (; ; plural: aides-de-camp) is a personal assistant or secretary to a person of high rank, usually a senior military, police or government officer, or to a member of a royal family or a head of state. The term comes from a French expression meaning "helper in the military camp".

military expert who is attached to a diplomatic mission

type of special intelligence service

A castellan, or constable, was the governor of a castle in medieval Europe. Its surrounding territory was referred to as the castellany.

staff officer in charge of supplies for a whole army

thumb | right | Captain of a ship during a U.S. Fish and Wildlife Service mission Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, etc. In militaries, the captain is typically at the level of an officer commanding a company or battalion of infantry, a ship, or a battery of artillery, or another distinct unit. It can also be a rank of command in an air force. The term also may

military messenger

position assigned to a worker on a shift or watch, carrying responsibility for supervision, administrative work, and incident response