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

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

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 ...

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 ...

Analysts say Beijing is eager to learn from Moscow's combat experience, even as its military capabilities eclipse its Russian ...

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

Russia fired a total of 537 aerial weapons at Ukraine, including 477 drones and decoys and 60 missiles, Ukraine’s air force ...

This week’s NATO summit isn’t about the U.S. strikes on Iran, but Iran will be a topic because of its drone supplies to ...