The desk of Andrii Tupkalenko, 8, one of the last children left in his frontline village, is seen at home in Kalynove, Kharkiv region, Ukraine, April 11, 2025. Neither Andrii nor his brother Maksym, 6, has ever set foot in a classroom because Russia’s invasion extended the remote learning over the internet that began during the COVID-19 epidemic, depriving more than one million of Ukraine’s seven million children of social contact critical to development, according to the Save the Children report. Around the same number risk developing post-traumatic stress disorder or depression, it said. REUTERS/Violeta Santos Moura