Iron Legion

The Iron Legion was an army of robots in an alternate Rome that had conquered the galaxy. They were led by General Ironicus and were veterans of the eternal war. They used infrared vision and could detect heartbeats with their sonar. The Iron Legion took prisoners from other dimensions to feed the Malevilus as offerings. After they invaded Stockbridge and were encountered by the Fourth Doctor, he escaped into their reality and programmed the Bestiarus to start a revolution by attacking the Iron Legion at key points throughout Rome. (COMIC: Doctor Who and the Iron Legion)

Roma D's leader committed the fearsome "Ferrum Legion" to the Empire of Empires' fight against the Greater German Reich during the War. (PROSE: Warlords of Utopia)