Ukrainian refugee Alyona and her family survived 100 days of hell during Russia's siege of Mariupol, which ended a year ago when the last Ukrainian troops in the city surrendered. A year later, her family has begun to rebuild their lives in Russia but are still haunted by the horrors of the battle for the Ukrainian port city. "We can never forget what it was like, especially my daughter," Alyona says. "My daughter was walking around, and she saw a dog eating a corpse. She would ask me: 'Mum, what's going on? Why is a dog eating a man?'" IMAGES AND SOUNDBITES