The march comes from The Lord of the Rings: The Two Towers, the second film in Peter Jackson's trilogy, released in 2002. In the story, Saruman breeds and sends the Uruk-hai to attack the fortress of Helm's Deep, and the accompanying music underscores their disciplined advance across the plains. Online, editors have reused the short march as shorthand for an approaching confrontation, an overwhelming team, or a dramatically overblown entrance, keeping it popular long after the film's release because the build feels instantly recognisable.