The Russian invasion of Ukraine is a blatant violation of several rules of international law such as the prohibition on the use of force in international relations given in the U.N. Charter. Russia has justified its aggression alleging that Ukraine is committing genocide. Ukraine vociferously contests this assertion and has moved the International Court of Justice (ICJ) against Russia under the Genocide Convention requesting an indication of provisional measures. The ICJ on 16 March 2022 indicated provisional measures ordering Russia to immediately stop the war. It found that Ukraine has a plausible right under the Genocide Convention not to be subjected to military operations aimed at preventing and punishing an alleged genocide. Although Russia has not complied with the ICJ’s binding decision, the weight of global opinion against Russia’s illegal actions is mounting.