The content originally appeared on: CNN Kyiv and Lviv, Ukraine (CNN)Vova doesn't know there is a war raging right outside his window. He doesn't understand the meaning of the air raid sirens. He is unaware of the destruction caused by Russian bombs dropping on Kyiv. He just wants to build towers from his toy blocks and press the buttons on his mom's phone that make it play songs and cartoons he likes. Vova, a pet name for Volodymyr, is 17 […]