Iya Rudzitskaya, a 92-year-old Ukrainian Jew, has fled Kyiv twice. First, in 1941, when she was just 10 years old and German bombs started falling on the then Ukrainian Soviet Socialist Republic. The second time came last year, when Russia invaded Ukraine on February 24. “I did not believe that this could ever happen,” said Ms Rudzitskaya, sitting in the small one-bedroom flat she shares with her son Artur in the Polish city of Krakow. “Earlier, the Germans were the enemy. But I don’t understand the Russians. They think they are defending their country, they are defending themselves, but they...