The only city captured intact by Putin’s forces remains a hotbed of resistance and partisan activity. It was the news many in Kherson had waited six months to hear. The Ukrainian counter-offensive launched this week to recapture the southern city was cheered by those who have suffered under Russian rule since Moscow’s forces took over in March. Residents in Kherson, strategically located on the Dnipro river that cuts across the country, reported hearing missile strikes and explosions around the city, which had made the Russian patrol increasingly jumpy. “The pro-Ukrainian activity of people who remain in Kherson is very high,”...