Russian forces have pushed west of Donetsk city and in the southern Zaporizhzhia region, the Institute for the Study of War has said.

Russia is relying on new tactics to gain ground in Ukraine, with the continuation of U.S. support uncertain as the war grinds on.

Ukraine’s military said it struck a major oil terminal Monday in Crimea that provides fuel for Russia’s war effort as Ukrainian President Volodymyr Zelenskyy said the war has entered a key phase. Both sides are facing the issue of how to sustain their costly war of attrition — a conflict that started with Russia’s full-scale invasion of Ukraine in February 2022 and that shows no signs of a resolution.