The mutual-defense alliance has been central to Ukraine’s war against Russia, but the future is uncertain with President Trump back in office. By Matthew Mpoke Bigg Lynsey Chutel and Anton ...

KYIV, Ukraine—The Russian army’s advance in Ukraine is slowing, just as President Trump is pressing for talks. The slowdown comes at a critical time for both sides. Russia wants to trade gains ...

Ukraine's President Volodymyr Zelensky says he is ready to sign a deal with the US on the joint development of his country's mineral deposits at "any time and in any convenient format". It comes ...

A bitter and bloody war in Ukraine has devastated the country, further isolated Russia from the West and fueled economic insecurity around the world. Talks in Moscow with a U.S. special envoy ...

How can Ukraine be assured that Russian President Vladimir Putin would abide by any ceasefire deal – and not resume fighting in a year or two, Zelensky asks. And how can Ukraine be protected ...

The roots of Russia's invasion of Ukraine go back decades and run deep. The current conflict is more than one country fighting to take over another; it is — in the words of one U.S. official ...