The statement comes after Estonia requested formal consultations under Article 4 of NATO's treaty after three Russian fighter ...

The Sept. 10 incident in Poland was the first direct encounter between NATO and Moscow since the war in Ukraine began.

At the same time, several news outlets report that Ukraine carried out drone strikes on Moscow throughout the night of Sept.

NATO on Tuesday condemned Russia for violating Estonian airspace last week and said it would use "all necessary military and ...

KYIV, Ukraine (AP) — Russia and Ukraine swapped accusations of deadly drone strikes on civilian areas of their countries ...

Russia said that it shot down three dozen Ukrainian drones heading toward Moscow while Ukraine said that Russian missiles, ...

With his troops under strain on the front line after more than three years of fighting Russia’s bigger invading army, ...

Ukraine's leader to push for "robust action" against Russia at U.N. gathering, as America's NATO partners accuse Putin of ...

NATO allies accused Russia at the United Nations on Monday of violating the alliance's air space in Estonia and Poland -- ...

A new memorandum will see Ukrainian forces training Polish troops in counter-drone tactics. It's a moment of recognition of ...

Russia has said it believes NATO is plotting a "landing" in Ukraine as part of a bid by the European Union to "occupy" Moldova.