As the war in Ukraine nears the one-year mark, we speak with veteran war crimes prosecutor Reed Brody about a growing movement to hold Russian President Vladimir Putin and his closest allies criminally responsible for the invasion. The Ukrainian government has called for a special tribunal to prosecute Russian leaders, modeled on the Nuremberg trials of Nazi officials after World War II. On Thursday, European Commission President Ursula von der Leyen announced the formation of an international center in The Hague for the prosecution of the crime of aggression in Ukraine. “Aggression is the worst international crime,” says Brody, who notes that there is currently no venue to prosecute crimes of aggression largely due to opposition from the United States and other victorious powers after World War II. “Let’s change the rules forever so that aggression — not only by Russia against Ukraine but any cases of aggression — can be prosecuted.” Brody has been involved in several major war crimes cases, including against Chile’s former dictator Augusto Pinochet, Haiti’s Jean-Claude “Baby Doc” Duvalier and former Chadian dictator Hissène Habré.