A Ukrainian delegation has arrived in the United States for talks on a U.S.-led diplomatic push to end the nearly 4-year-old war.

Former Putin adviser Sergey Karaganov warned that Russia would use nuclear weapons against Europe should it ever come close to defeat.

Russia's "massive" military losses in Ukraine are unsustainable, NATO's secretary general warned with the conflict about to enter its fourth year with no clear end in sight.

The United States is accusing Russia of a “dangerous and inexplicable escalation” of the nearly four-year war in Ukraine at a time when the Trump administration is trying to advance negotiations toward peace.

Up to 25,000 Russian soldiers are being killed every month, NATO Secretary General Mark Rutte said this week.

Russia says it used its new Oreshnik hypersonic missile and other weapons in a massive strike on Ukraine​. Ukrainian President Zelenskyy says a drone hit the Qatar embassy.

With the sides far apart on key issues as Russia’s full-scale invasion of Ukraine approaches the four-year mark, analysts say the deadliest conflict in Europe since World War II is unlikely to end in 2026.

Russia said on Thursday that its was unacceptable for the West to keep claiming that Russia and China threatened Greenland, and said the crisis over the territory showed the double-standards of Western powers which claimed moral superiority.

An ally and former adviser to Russian President Vladimir Putin and former President Boris Yeltsin said the country could use nuclear weapons against Europe should Russia ever be on the verge of

The United States accused Russia of "dangerous and inexplicable escalation" after new attacks on Ukraine's energy and civilian infrastructure.

KYIV, Ukraine (AP) — Russia launched a second major drone and missile bombardment of Ukraine in four days, officials said Tuesday, aiming again at the power grid and apparently snubbing U.S.-led peace efforts as the war approaches the four-year mark.