This article demonstrates the connections between terrorism, colonial state formation, and the development of the capitalist world system, or globalization, exploring the consequences of colonial terrorism on indigenous American peoples. First, the piece introduces the central argument and conceptualizes and theorizes terrorism. Second, it examines the structural aspects of colonial terrorism by connecting it to specific colonial policies and practices. Third, it explains the ideological justifications that Euro-American colonial settlers and their descendants used in committing crimes against humanity and dispossessing the homelands of indigenous Americans, as well as in amassing wealth/capital by ignoring moral, ethical, and philosophical issues and human rights.