Poland detained a Russian archaeologist who works on an ancient site in Crimea, which Russia seized in 2014. Ukraine calls the work illegal.

Lawmakers debate Trump's timeline for Ukraine peace deal as territorial concessions remain a sticking point in negotiations to end the four-year conflict.

At least three oil tankers have been hit by explosions in what appears to be a stepped up unilateral effort by Ukraine to sink Russia's sanctions-dodging oil sales.

The president has wavered in his faith in Ukraine since returning to the White House, telling Ukrainian President Volodymyr Zelenskyy in a February White House confrontation that he didn’t “have the cards,” before appearing to change his mind in September, advocating for Ukraine to win all of its land back “in its original form.”

The Ukrainian leader rejected the demand, making clear that territorial issues remain unresolved as Ukraine and Europe sent a counterproposal to the United States.

Russia is pushing to take over all of eastern Ukraine's Donbas region, where one resident tells NPR that she feels her "life depends on how our guys at the front hold on."

Russia's capture of Pokrovsk appears to be a matter of 'when' not 'if', and while its fall will not trigger a collapse in Ukraine's defences, it weakens Kyiv at a sensitive juncture in U.S.-led negotiations to end the war.

In the early months of the invasion, in 2022, the Russians tried to suffocate Ukraine’s economy by imposing a naval blockade of its ports. About 20 million tons of grain got stuck in the port city of Odesa, causing global food prices to spike and raising fears of famine in parts of Africa and the Middle East that rely on supplies from Ukraine.