A military unit, nominally headed by a colonel, equivalent to a USAF support wing, or an army regiment.
The troops stationed at such a post.
A permanent military post.
Occupants.
To convert into a military fort.
To occupy with troops.
To assign troops to a military post.
An army of trained civilians, which may be an official reserve army, called upon in time of need, the entire able-bodied population of a state which may also be called upon, or a private force not under government control.
Synonym of militsia: the national police force of certain countries (e.g. Belarus).