The use of "militia" rather than "police" to refer to the police force (of Russia and some other countries) originated among Russian communists.
militia (plural militias)
- (in particular) 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.
- The national police force of certain countries (e.g. Russia, Ukraine).
army of trained civilians called upon in time of need
From mīles (“soldier”).
- military service; soldiery, military
- warfare, war, campaign
- civil service, profession, employment
- (figuratively) military spirit, courage, bravery