Where Will Ukraine's Counteroffensive Happen?

With Moscow's attritional eastern offensive reportedly nearing culmination, attention is again turning to Ukraine's planned spring counteroffensive, which Kyiv and its foreign partners hope will collapse Russian lines and liberate another significant chunk of occupied territory.

Russia's grinding attacks in the Bakhmut area of the Donetsk Oblast—and in the last week also around the town of Avdiivka—have achieved limited success at high cost. Western officials believe tens of thousands of Russian troops have been killed in recent fighting in the area, with Wagner Group mercenaries and regular units almost surrounding,...