President Volodymyr Zelensky of Ukraine said that Russian forces were throwing “everything they can” at Kyiv’s troops fighting to retake land in the south and east, again emphasizing the grueling nature of a counteroffensive that is moving more slowly than some allies had hoped.
Ukrainian troops have made only small gains since launching the widely anticipated campaign in June, and in recent weeks, they appear to have stalled in some areas in the face of staunch Russian defenses….