The origins of the idea of humanitarian intervention: just war and against tyranny

The original just war doctrine was not concerned with intervening in other states for humanitarian reasons, but with providing just reasons for resorting to an inter-state war. It was only by the sixteenth century, coinciding with the birth of international law, then known asjus gentiumor law of nations, under the sway of natural law, that support for those suffering from tyranny and maltreatment was seen as one of the reasons for a just war. The just war (bellum justum) doctrine has its origins in ancient Greek and Roman thought, and was developed in early Christian and more specifically