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 ...

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 ...

The Kremlin said on Tuesday that NATO was on a path of rampant militarisation and bent on portraying Russia as a "fiend of ...

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 ...

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

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

The Kremlin has accused Estonia of making a "direct threat" after it offered to host nuclear-capable aircraft from NATO.

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 ...