VOLGOGRAD, RUSSIA - JUNE 21, 2016: People light candles at the Motherland Calls statue on top of the Mamayev Kurgan commemorating the WWII Battle of Stalingrad during an annual Candle of Memory event to mark 75 years since Nazi troops attacked the Soviet Union during World War II. Dmitry Rogulin/TASS (Photo by Dmitry Rogulin\TASS via Getty Images)
