How Russia's gradual gains in the face of fierce Ukrainian opposition have affected the front line in recent months.

This interactive timeline of the war in Ukraine shows major attacks, key moments and how the battle lines have shifted in the four years since Russia's all-out invasion.

On the war's fourth anniversary, Russia occupies 20 percent of Ukraine's territory, but the front line shifts slowly.

Ukraine is battling more than the Russian army. After more than 21 months of grueling war, it’s now grasping for the world’s attention in the shadows of the conflict in the Middle East. And with its ...

New war maps show that the Ukrainian military has accelerated its defensive line strategy, shifting from a "linear concept to a layered depth-oriented system," according to a war monitoring map ...

KYIV, Ukraine (AP) — A critical moment for the future of Ukraine’s Donetsk region is approaching as the battle for the city of Pokrovsk reaches a key stage, with Russian and Ukrainian forces so ...

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

Moscow’s forces infiltrated Pokrovsk after months of attacks on the city, a strategic part of Ukraine’s eastern defenses. By Constant Méheut and Olha Konovalova Reporting from Kyiv, Ukraine Street ...

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