Azerbaijan and Armenia will fight out a long-running "ethnic cleansing" dispute at the top United Nations court from April 15, just as military tensions are ramping up between the historic enemies. Robed lawyers from the two countries embark on two weeks of hearings, wrestling over interpretations of international law. The legal battle before the International Court of Justice dates from September 2021 when both sides filed tit-for-tat suits against each other within a week. Both sides accused the other of "ethnic cleansing" and of violating the International Convention on the Elimination of All Forms of Racial Discrimination (CERD).