Russia’s Defense Ministry claims that Russian troops have fought their way into the center of a strategically important eastern Ukraine town and raised the Russian flag there after a monthslong battle.

Russia’s aggression in Ukraine has been a splitting point between Trump and the more hawkish Republican Senate conference. Last year, Trump blew up a deal to swap additional provisions for border security in exchange for aid to Israel and Ukraine. Aid to Ukraine ultimately passed without additional border security spending.

Moscow believes it has the resources and manpower to withstand at least another year of the conflict.