After the Missouri militia was routed in the Battle of Crooked Creek, Governor Lilburn Boggs issued Missouri Executive Order 44 to evict the Mormons from the state. Three days later, a group from Livingston County killed 18 Mormons in the Haun's Mill massacre. Troops laid siege to Far West, where Smith surrendered in October 1838. The settlers agreed to leave; they abandoned Far West and initially regrouped in Quincy, Illinois, for the winter of 1838–39. The following spring, they founded Nauvoo, Illinois.