Several weeks ago, I met a young woman named Nastya at a playground in Kharkiv, Ukraine. She was playing with her little brother Hlib, tending to their aging Labrador, and enjoying a peaceful morning near the ruins of Specialized School No. 134. A little more than four years ago, Nastya and Hlib’s playground was anything but peaceful. On Feb. 27, 2022, the school became a battlefield where Ukrainian soldiers, police, and civilian volunteers fought a detachment of Russian Spetsnaz, special