Wiktionary
red rider
n. (context idiomatic English) another name for "War", one of the Four Horsemen of the Apocalypse.
Wikipedia
Red Rider
Red Rider, later known as Tom Cochrane & Red Rider, is a Canadian rock band popular in the 1980s. While they achieved great success in Canada, the band never had a song in the Top 40 in the United States, although " Lunatic Fringe" became a hit on album-oriented rock radio.