title: The Russian–Ukrainian War in Light of the International World Order and the Reactions of the European Union
abstract: The Russian-Ukrainian War in Light of the International World Order and the Reactions of the European Union Russia violated the most basic rule of international law, the prohibition of aggression, by attacking Ukraine.Russia's legal arguments for attacking Ukraine are not acceptable under international law.These arguments are, however, not new: similar legal arguments had already been used in other occasions, including by other states.At the same time, the war in Ukraine is an unprecedented viol