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

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

Add Yahoo as a preferred source to see more of our stories on Google. As President Trump attempts to help negotiate an end to Russia's war in Ukraine, questions have grown about what will happen to ...

Analysts believe there is a gray zone between Russia and Ukraine, roughly 3 to 12 miles wide, that isn't under the control of either army. Maps analyst Clement Molin depicted the zone on a map posted ...

As President Trump attempts to help negotiate an end to Russia's war in Ukraine, questions have grown about what will happen to Ukrainian territory claimed by the Kremlin and held by Russian forces.