It’s not clear whether Russia would try to expand its offensive elsewhere in Ukraine if it takes the Donbas. A Ukrainian official said Tuesday that Moscow is deploying troop reinforcements in eastern Ukraine as a Russian artillery barrage aimed to grind down Ukrainian defenses. Luhansk governor Serhiy Haidai conceded that Russian forces control the industrial outskirts of Sievierodonetsk. Haidai said Russian troops shelled a local market, a school and a college building, destroying the latter. That assistance has become a target for Russian artillery and warplanes.