The International Court of Justice (ICJ) in The Hague is due Friday to make a preliminary ruling on jurisdiction in a case filed by Ukraine against Russia. The highest court of the United Nations is expected to decide whether it is authorized to open main proceedings in this case. Ukraine sued its neighbour shortly after the full-scale Russian invasion in the spring of 2022, citing the Genocide Convention. Kiev accuses Moscow of abusing this convention. Russia had initially justified the invasion of Ukraine by claiming that genocide against Russians in Ukraine had to be prevented. With this fa…