Subduing the Mormons in Utah Territory: Foundation for the insular cases

The conflict between the US government and the Mormons in Utah Territory during the second half of the nineteenth century reflected shifts in the American territorial system. Through a repudiation of religious practices and dismantling of the Latter-Day Saints’ Church as an institution, the federal government demonstrated a willingness and ability to interfere with and regulate traditional local issues such as marriage and religion. This provided a foundation for the changes to the territorial system outlined by the Supreme Court in the Insular Cases. Scholars have overlooked the continuities between earlier territorial policy and the post-Insular Cases colonial system. Linking the struggle over authority in Utah Territory with the outcome of the Insular Cases as a component of territorial policy history fills this gap and helps to illuminate the policy connections between continental expansion and overseas expansion.