Technological advances have given threadbare militaries and rebel fighters the ability to strike stunning blows against far ...

Russia is advancing around Kostyantynivka and in the Sumy region with small, fast-moving units as both sides try a new tactic ...

Seizing complete control of the region − nearly one-third of which remains under Ukrainian control − has been a primary goal ...

Russia has intensified attacks in Ukraine’s northeast, announcing plans to create a so-called ‘buffer zone’ in the Sumy and ...

Ukraine's president said that troops maintained their defensive lines along more than 1,000 kilometers of the front.

Russian fatalities in Ukraine (in just over three years) are 15 times larger than the Soviet Union’s decade-long war in ...

A dozen soldiers work from a home workshop to transform civilian-use devices provided by the government or private entities ...

Russia lost a third of its strategic bombers as talks stalled, while Moscow’s forces made marginal front-line advances.

Russian forces have widened the frontline in Ukraine's northern region of Sumy, officials and analysts said, and Moscow said ...

Russian forces are advancing in the northern Ukrainian region of Sumy, bringing the regional capital within range of their ...

Ukrainian forces were gradually pushing Russian forces out of the border Sumy region, where Moscow was able to establish a ...