Officer (armed forces)

An officer is a member of an armed forces or uniformed service who holds a position of authority.

A commissioned officer (left) and a non-commissioned officer of the British Army prepare for a mission in Afghanistan.

In its broadest sense, the term "officer" refers to commissioned officers, non-commissioned officers, and warrant officers. However, when used without further detail, the term almost always refers to only commissioned officers, the more senior portion of a force who derive their authority from a commission from the head of state.