Ukraine’s secret and speedy cross-border incursion into Russia surprised not only its enemy, but even the nation’s own troops, according to a senior official part who was part of the mission.

Kyiv military spokesman Vadym Mysnyk said on Saturday that Russia has increased its troop deployment in the region from 11,000 personnel before the incursion in August to an estimated 30,000 to ...

Ukraine's incursion into Russia's Kursk region shows that Russia can't simultaneously attack and defend, according to a former US ambassador to NATO. Russia "can't attack Ukraine and defend Russia ...

At least, that's what Ukrainian President Volodymyr Zelenskyy seems to think. His country's shocking incursion into the Kursk region of Russia is part of a "victory plan" designed to force ...

On the Ukraine-Russia border — CBS News met the troops of Ukraine's 117th Territorial Defense Brigade in the eastern Sumy region as they prepared for another trip to the front line. Their ...

A Saturday report by the Institute for the Study of War (ISW) said that "operational pressures from the Ukrainian incursion in Kursk Oblast are impacting Russian operations in every sector ...

Rather than drawing Russian forces away from more critical battlefronts in Donetsk, the incursion has dispersed Ukrainian forces, allowing the Russian military to focus on the current center of ...

Ukraine's incursion into Russia's Kursk region is legitimate and covered by Kyiv's right to self-defense, NATO Secretary-General Jens Stoltenberg told German weekly Welt am Sonntag in his first ...

Replicator’s goals of drone deployment and business development process change are both worthy objectives. But given the Pentagon's antiquated culture, is two years enough time to procure more ...

The Russians do not appear to have the manpower and weaponry to keep pushing battle lines in Ukraine’s Donetsk region and respond to the incursion in Kursk, one official said. Ukrainian forces ...

Ukrainian President Volodymyr Zelensky said the incursion into Russia’s Kursk region was the first part of Kyiv’s victory plan, which he intends to present to US President Joe Biden in ...

Then came Russia’s incursion into Kharkiv region, aided by long-range strikes from well within Russian territory. The Ukrainians were in effect fighting with one hand behind their back ...