Taisia ​​Shcherba, 6, left, speaks with her classmate during their first day of school at a public school in Irpin, Ukraine, Thursday, Sept. 1, 2022. Ukrainian children return to school without sharing memories from their holidays. They share stories of how they survived the first months of the war. For many children, last semester finished the day before Russia invaded Ukraine on the 24th of February. The ongoing war remains the biggest challenge for the educational system of Ukraine. (AP Photo/Emilio Morenatti)