With their earlier experiences having convinced them that they had to "guide" the solids, the Changelings became the "Founders" of the Dominion, which, according to Weyoun 4, "has endured for two thousand years", i.e., since the 4th century. (DS9: "To the Death") Around the same time, the Jem'Hadar, a species genetically engineered by the Founders specifically for warfare, became the Dominion's first line of defense. They were created with a god-like reverence of all Changelings as well as an innate addiction to the narcotic ketracel-white, thereby ensuring absolute dependence and obedience. (DS9: "Hippocratic Oath", "What You Leave Behind") The Founders also kept their promise to the Vorta, who became the Dominion's commanders, diplomats, civil servants and scientists. Similar to the Jem'