Russia’s war on Ukraine has been dictated as much by events in the air as by territorial gains on the front line.

Ukrainian President Volodymyr Zelenskyy warned allies that the defense of his nation is a litmus test for broader Western ...

The partnership, according to officials who spoke to ABC News, has been essential to Ukraine defending itself as Russia invaded almost three years ago.

The Russian army has intensified its offensive on two fronts. In the Siversk direction, Ukrainian Armed Forces fortifications ...

A Ukrainian official says Russian forces are bypassing a key stronghold in eastern Ukraine that they have fought for months ...

Ukrainian forces have deployed British Challenger 2 tanks in Sunday’s surprise counteroffensive in the Kursk region, Russian ...

Russia has been steadily gaining in Ukraine but has focused its efforts on advancing in the country's eastern Donetsk region.

UKRAINE launched a massive overnight drone attack striking key Russian targets more than 300 miles behind the enemy line. A ...

The Russian missiles sought out targets from the Lviv region in western Ukraine near Poland to Kharkiv in northeast Ukraine ...

Ukraine launched a daring offensive into Russia's Kursk region, hoping to stretch Russia's resources and gain a new ...

German defense minister Boris Pistorius arrived in Kyiv on a surprise visit amid rising uncertainty with growing splits in ...