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From: CNN By Ivana Kottasová
Russian forces are inching toward the strategically important city of Pokrovsk in eastern Ukraine, threatening a vital Ukrainian supply line as Moscow continues its slow, grinding offensive.
Russia has been stretching Ukrainian defenses across the entire eastern front line for months, trying to capture as much territory as possible before new Ukrainian recruits and fresh batches of Western weapons start arriving on the battlefield.
The gains made by Russia have been largely incremental – the front line has barely moved in the past few months – but the recent advance toward Pokrovsk has Ukraine and its allies worried.