This chapter assesses the rise of democratic constitutional rule after 1918. It covers a range of societies, but focuses on Germany, Poland and Spain. In different ways, it shows how constitutions created at this time were designed to move government away from imperialist models. However, constitutions remained enduringly attached to military organizations, and most were unsettled by military violence. Distinctively, constitutions of this period tended to weaken the partition between the sovereign nation state and the global military environment, and they resulted in governments that declared war on sections of their own populations. In such cases, governments patterned their own societies on colonial systems of organization.