Ukraine intensified artillery and missile strikes against the Russian-controlled parts of the Donbas region, targeting weapons depots and military bases in an effort to stall a Russian offensive, while Moscow unleashed new salvoes of long-range missiles—some of them shot down by air defenses—on cities across Ukraine. ... That Russian offensive is likely to have been further stalled by a successful Ukrainian missile strike on an ammunition storage facility used by Russia and its proxy forces in the town of Krasny Luch, deep in the rear of Russian-controlled Luhansk. While the strike, using the Tochka-U ballistic missile, took place on Thursday,...