Days before the leaders of Russia and the U.S. hold a summit meeting in Alaska, Moscow’s forces breached Ukrainian lines in a series of infiltrations in the ...

Exacerbating Polish resentment has been the peculiar intransigence of the Ukrainian authorities when it has come to ...

The package includes geographical maps intended to justify Russia's territorial claims and ongoing military aggression, ...

P olish authorities have arrested a Ukrainian teen accused of subversive activities on orders from a foreign intelligence ...

Drones in the hands of non-state actors pose the greatest danger on the battlefield but the domestic landscape is far from immune.

"What comes after that meeting is up to President Trump," White House Press Secretary Karoline Leavitt told Fox News. "He ...

The teenager allegedly vandalized monuments to victims of the Ukrainian Insurgent Army (UPA), including one in Domostawa, and ...

Poland's Internal Security Agency has detained a 17-year-old Ukrainian citizen who is believed to have been recruited by ...

As he heads to Alaska for talks with President Trump, the Russian leader projects confidence that his edge on the battlefield will secure a peace deal on his terms. It’s the result of a yearslong ...

Russia summit approaches, Ukrainian military faces growing divisions between the rank-and-file and top brass ...

Executive Summary  Ukraine’s defensive position around Pokrovsk deteriorated markedly last week, as Russian forces gained ...