 This resulted in the 1838 Mormon War, the Haun's Mill massacre, and the issue of the Missouri Executive Order 44 by Governor Lilburn Boggs, which ordered "" ... Mormons must be treated as enemies, and must be exterminated or driven from the state ... "".The majority of Mormons would flee to Illinois, where they were received warmly by the village of Commerce, Illinois.The Mormons quickly expanded the town and renamed it Nauvoo, which was one of the largest cities in Illinois at the time.