For most of the eighteenth century, British protestantism was driven neither by the primacy of denominations nor by fundamental discord between them. Instead, it thrived as part of a complex transatlantic system that bound religious institutions to imperial politics. As Katherine Carte argues, British imperial protestantism proved remarkably effective in advancing both the interests of empire and the cause of religion until the war for American independence disrupted it. That Revolution forced a reassessment of the role of religion in public life on both sides of the Atlantic. Religious communities struggled to reorganize within and across new national borders. Religious leaders recalibrated their relationships to government. If these shifts were more pronounced in the United States than in Britain, the loss of a shared system nonetheless mattered to both nations.Sweeping and explicitly transatlantic, demonstrates that if religion helped set the terms through which Anglo-Americans encountered the imperial crisis and the violence of war, it likewise set the terms through which both nations could imagine the possibilities of a new world.