The Ukrainian Defense Ministry said there has been a “cut off” of Russia’s Starlink satellite internet terminals in Ukraine, which it claims has disrupted Russian military communications on Thursday.

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

Kyiv is trying to hammer out concessions from Moscow and iron-clad security guarantees from its allies to end the war as Russia appears to dig in on territorial claims.

Ukraine claims a bold deep strike inside Russian territory, targeting one of Moscow’s most sensitive missile facilities — the ...