KYIV (Reuters) - Russian forces are slowly tightening the noose around the eastern Ukrainian city of Pokrovsk, a key logistical hub whose main supply lines are under threat nearly three years after Moscow invaded its neighbour.
While Ukraine is stubbornly defending the city, its encirclement or fall could put Russia in a strong position to mount attacks in several directions in the east and increase pressure on Kyiv at a critical juncture in the war.
