Russia is massing troops along NATO's borders and expanding military units while giving them combat experience, creating the ...

Russian president spoke as oil prices surged past $100 per barrel, reaching levels unseen since start of Ukraine war.

Russia resumes oil loadings at Sheskharis and reportedly provides Iran with intelligence to target U.S. military assets.

Russia launched its full-scale invasion of Ukraine four years ago, and the fighting continues. Here's a look at where the war ...

Dispatches from Ukraine. Day 1,473.

Watch FRONTLINE’s documentaries examining the conflict’s evolution, Vladimir Putin’s grievances with the West and crackdown ...

TERNIVKA, Ukraine — This quaint coal-mining town roughly 30 miles from the frontlines in Eastern Ukraine is bustling with life — when it’s not under direct attack by Russian forces. There’s a sushi ...

A Russian lawmaker has suggested that a broader conflict between Russia and European countries could become increasingly likely as tensions remain high over the war in Ukraine.