The Guardians of the Universe are nine members of an ancient race of immortals that built Oa, harnessed the energy of Willpower, and thus created the Green Lantern Corps. They divided the universe into 3600 sectors, and assigned each a Green Lantern who would bear a power ring, the most powerful weapon in the universe, in order to enforce order and justice. Through their efforts, guidance, and wisdom, order has been maintained in the universe for countless millennia.