Some NATO countries worry using any version of the term “Article 5” for Ukraine defense could weaken its deterrence.

It’s unclear what effect the change will have on Russia’s ability to wage war, but Russian military bloggers said troops were experiencing internet outages that hampered frontline communications.

Envoys from Russia and Ukraine are meeting in Abu Dhabi for U.S.-brokered talks aimed at ending the nearly four-year war

Russia launched a massive overnight attack on Ukraine using more than 70 missiles and 450 drones, Zelenskyy said, one day before peace talks resume in Abu Dhabi.

By Tom Balmforth KYIV, Feb 5 (Reuters) - Starlink internet terminals used by Russian troops in Ukraine have been deactivated, Kyiv said on Thursday, dealing what one official said was a big battlefield setback for Moscow that had disrupted assault operations.

As casualties in Ukraine continue to mount, the Kremlin is seeking new sources of manpower while trying to avoid the political shock of full mobilization. Just days before the New Year, Russian leader Vladimir Putin signed laws expanding military conscription.

Ukraine said it had used its FP-5 missile, known as the Flamingo, during a series of strikes on the Russian facility.

Seizing on the frigid weather, Russia has launched an all-out assault on Ukraine’s energy infrastructure, with the apparent aim of keeping up pressure amid ongoing peace negotiations—and sapping public morale.