In one document dated 2001, Bush told Putin that “a strong Russia is in the interest of the United States” and encouraged him ...

The Kremlin has described Ukraine’s push to join NATO as one of the “root causes” of the conflict. U.S. President Donald ...

Poland scrambled fighter jets and put ground-based air defense systems on the "highest state of readiness" to protect NATO territory, Warsaw said.

The first draft essentially called for Ukraine’s surrender. The revised version includes the security guarantees Kyiv wants ...

NATO Secretary-General Mark Rutte issued a stark warning to Western allies about the reality of the threat posed by Russia, ...

When a group of defense insiders gathered in Whitehall, the home of the British government, last month to discuss how prepared the United Kingdom and its allies were for a war they believe could come ...

Poland scrambled fighter jets on Christmas morning after detecting a Russian reconnaissance aircraft near its airspace over ...

Ukraine claimed it carried out an underwater drone strike on Dec. 15, the first such attack in maritime warfare, that ...

Ukraine said a resistance agent was able to sneak into a Russian hangar and destroy two Russian fighter jets.

Ukraine has relinquished its ambition of joining the NATO military alliance in exchange for Western security guarantees as a ...

For countries like Poland, having eyes on and under the Baltic is a pressing matter of national security. The sea teems with ...

U.S. administration officials signaled Monday a peace deal between Russia and Ukraine may be closer than ever.