A man clears debris from the wreckage of his home after a Russian strike on Zaporizhzhia, Ukraine, on Aug. 2, 2026. Each side is using missiles and drones to try to pound the other into giving up, breeding ceaseless human suffering. But there is no sign that either country’s determination will weaken. (Nicole Tung/The New York Times) By KIM BARKER, OLEKSANDRA MYKOLYSHYN and IVAN NECHEPURENKO They are both torching warehouses filled with food or online-shopping orders near major cities. They…