guerrilla russian

• боеви́к

  militant, gunman, armed fighter, guerrilla

  action movie, action film

  hit, smash hit, box-office hit

• партиза́нщина

  disorganized approach, undisciplined improvisation, free-for-all, arbitrariness

  partisan movement, guerrilla warfare

Examples

• На наши войска постоянно нападали повста́нцы.

  Our troops were constantly harassed by the guerrillas.

• Местные жители перешли к партизанству против оккупантов.

  The local inhabitants resorted to guerrilla warfare against the occupiers.

• В отряде царила настоящая партизанщина без всякой дисциплины.

  The unit was in a state of complete guerrilla-style disorder, without any discipline whatsoever.