Drawing on two decades of research on nonviolent movements in conflict zones, Oliver Kaplan analyzes the rise of community efforts across the United States to protect neighbors from aggressive immigration enforcement. The article identifies key lessons shared with civilian protection strategies abroad, including the power of organizing, disciplined nonviolence, safe zones, community fact-finding, and accompaniment. While acknowledging the risks involved, it argues that collective action and moral authority can limit violence and strengthen civil society in the face of state power.