A 700-man force of Colorado Territory militia attacked and destroyed a village of friendly Cheyenne and Arapaho encamped in southeastern Colorado Territory. They killed and mutilated an estimated 70-163 Indians, about two-thirds of whom were women and children. This atrocity became known as the Sand Creek Massacre (also known as the Chivington Massacre, the Battle of Sand Creek or the Massacre of Cheyenne Indians).
Two of the US Army officers present refused the order to have their men attack.
They killed everyone in a American Indian village, including women and children.
all of the above
It was founded on the principle that Native Americans were the equals of European-Americans, and that Native American children immersed in mainstream Euro-American culture would learn skills to advance in society. Many people believed that Amerindians, a population that was numerically declining, were a vanishing race whose only hope for survival was rapid assimilation to American culture. Whether the goal was worthy or achievable is an ongoing debate.
It was to move them to specific lands.
stop the white settlement of their land