The Progeny is a union of races dedicated to protecting the legacy of the Forerunners. They mainly use weapons that they have developed from studied Forerunner technology. It was founded in 832 B.C.E. at the end of the Sanghieli-San 'Shyuum War in an alternate universe, where a bloody stalemate lasted for a longer time, convincing both sides that if the war continued, neither side would win. They compromised, formed a political union between them. They can be considered a Republic, as their governing body is a council made up of the member races of the nation.