Ukrainian President Volodymyr Zelensky attends an opening of an installation at Babyn Yar on September 29, 2020 during a ceremony marking the 79th anniversary of the beginning of mass execution of Jews by the Nazis in September 1941. - The Babyn Yar (Babiy Yar) ravine in Kiev was the location where Nazis shot dead several tens of thousands of Jews. (Photo by Sergei SUPINSKY / AFP)