The Russian army's reported military advances in the Ukrainian city of Vuhledar could shore up strategic advantages in the Donbas region for all of 2023. Ukrainian President Volodymyr Zelensky on Tuesday warned that Russia "is preparing for a new wave of aggression" coinciding with new assaults on Vuhledar as well as Bakhmut. His apprehension has been compounded by additional reports of small squad-sized Russian assault groups of 10 to 15 troops launching "limited ground attacks" on two main sectors of the front line—in central Zaporizhzhia and in Vuhledar in the western Donetsk oblast, according to the Institute for the Study...