Western officials have accused Russia and its proxies of staging dozens of attacks and other incidents across Europe since ...

The AP documented incidents in which European governments, prosecutors, intelligence services or other Western officials ...

Ukraine's strikes on Russian energy sites will have to stop temporarily, following Russia's agreement to begin the limited ...

Moscow's forces have advanced in Ukraine's Zaporizhzhia region, as the U.S. and Russian leaders are expected to speak on Tuesday.

Here's what's at stake as Ukrainian and US officials prepare for crunch talks this week in Riyadh, Saudi Arabia.

At the height of the campaign, Ukrainian forces controlled some 500 square miles of Russian territory. Now they hold just a ...

Russia agreed to pause attacks on Ukraine’s energy infrastructure for 30 days following a call between Donald Trump and ...

The bold campaign Ukraine launched last summer to seize and occupy Russian territory appears to be nearing an end.

A widely-used online Ukrainian battlefield map appeared to show Ukrainian forces no longer in control of the town of Sudzha in Russia's Kursk region on Wednesday.