militia

noun2

1. •
   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.

   • He coasts down to a dead stop in the middle of the channel, makes a scan for militia men and wireheads, and finds none. — 1992
2. •
   Synonym of militsia: the national police force of certain countries (e.g. Belarus).