The Nazi invasion of the Soviet Union in 1941 resulted in some of the most horrific massacres and acts of genocide perpetrated during the Second World War – not least in Ukraine. At one site alone – Babyn Yar, on the outskirts of Kyiv – almost 34,000 Jews were shot by the Nazis over one weekend in September 1941. One month earlier 23,600 Jews were massacred at the Ukrainian tow...