On Saturday May 9, President Vladimir Putin was in attendance as Russia held its annual Victory Day parade celebrating the Soviet Union’s victory over Nazi Germany in World War II. Victory came at a heavy cost to both sides: an estimated 27 million Soviet deaths, both military and civilian, and 4 to 5 million German military deaths. Many of the Germans who survived Operation Barbarossa, the Wehrmacht's doomed invasion of the Soviet Union, went on to spend time in prisoner-of-war camps before