“Establishing the command structures of militaries and other groups involved in atrocities is the lifeblood of properly conducting investigations into international crimes,” Mark Kersten, assistant professor of criminology and criminal justice at Canada’s University of the Fraser Valley, said in an email to The Associated Press. “When the Nazis were prosecuted at Nuremberg, the lead counsel for the Allies famously exclaimed that it was individuals who would be prosecuted for atrocities, and not abstract entities, namely states.”