The Brotherhood of Steel is a fictional organization in the Fallout video game series. Founded in the aftermath of a nuclear apocalypse, they aim to preserve technology and knowledge from before the war. The Brotherhood believes that advanced technology should be protected and used responsibly, often viewing outsiders with suspicion. Members of the Brotherhood are typically heavily armed and wear distinctive power armor. They operate in various regions, including the West Coast and Capital Wasteland, and often engage in conflicts with other factions. Their strict code of ethics emphasizes loyalty, discipline, and the importance of safeguarding humanity's technological legacy.