The invasion of Ukraine violated the Charter of the United Nations prohibition on aggression and constitutes a crime of aggression according to international criminal law. There are significant procedural obstacles to prosecuting Russian leaders for the crime for aggression at the International Criminal Court, but the crime of aggression can be prosecuted in countries that allow universal jurisdiction over such crimes. While many events in the invasion are debated as to whether they constitute a war crime, the general consensus designates it as such.[3][4][5]