More than three years into Russia's full-scale invasion, Ukrainians across the country retreat each night to bomb shelters and metro stations in a nightly ritual necessitated by the long reach of Moscow's drones and missiles. This summer, Ukrainians are spending more time in such shelters than ever before. The first bombardments of Kyiv and other major cities began in the early morning of Feb. 24, 2022, as Russian troops surged across Ukraine's borders on several axes. In the years since, the attacks have never stopped. Through July, Russia launched a record 6,443 drones and missiles into the country, according to...