A red Santa Claus hat slipped over 7-year-old Kateryna’s eyes as she bounced down the stairs to join her family for a game of Uno. “She is dressed for Christmas,” her mother, Hanna Tovsta, said as she adjusted Kateryna’s hat. After the card game, Tovsta put a pot of water on the stove to boil while husband and father Roman Tovstyi washed and cut vegetables. Kateryna and her sister, Anastasiia, ...