The Red Army is a hooligan firm who follow Englishfootball club Manchester United. Although today the term Red Army is used mostly to refer to fans of the club in general, the hooligan firm have been one of the largest and most feared firms in British football.
The Red Army was the name given to Manchester United away support during the 1970s. Most notoriously in 1974–75, when United had been relegated from the top flight of English football and played one season in the Second Division, the Red Army caused mayhem at grounds up and down the country, visiting stadiums where they would at times outnumber the home support. Together with a Bolton Wanderers fan stabbing a young Blackpool fan to death behind the Spion Kop at Bloomfield Road in Blackpool during a Second Division match on 24 August 1974, this led to the introduction of crowd segregation and fencing at football grounds in England.