Ukrainian officials reported Russian attacks on critical infrastructure in the west of Ukraine, bordering Poland.

Russia launched 537 drones and missiles into Ukraine overnight into Sunday morning, according to Ukraine's air force, with a ...

The Kremlin said on Friday that Estonia's stated readiness to host NATO allies' U.S.-made F-35A stealth jets, capable of ...

"The F-35s have already been in Estonia and will soon return again in rotation," Estonia's defense minister Hanno Pevkur said ...

In May, NATO jets were scrambled four times to identify and escort Russian aircraft violating flight rules in the Baltic and ...

Since the invasion of Ukraine prompted Helsinki to join NATO two years ago, tensions reminiscent of the Cold War have ...

Russia killed dozens of Ukrainian civilians in less than 48 hours on Monday and Tuesday, according to Ukrainian officials, ...

President Donald Trump is suggesting that a commitment by NATO members to spend more on defense could help prevent future ...

The Dutch government says pro-Russian hackers have launched a series of denial-of-service attacks on municipalities and ...

Russian drones, missiles and artillery killed at least 26 civilians and injured more than 200 others in Ukraine, officials ...

British Typhoons and Swedish Gripens are deployed to Malbork, Poland, as part of enhanced air policing measures. 15 Russian ...