Russia's foreign minister said a group of nations including U.N. Security Council members should guarantee Ukraine's security ...

Open-source researchers at the investigative project Tochnyi, which says it "aims to accurately report" on the Russia-Ukraine ...

BRUSSELS (Reuters) -NATO allies and Ukraine are working together to make sure security guarantees for Ukraine are at such a ...

NATO's top military officials emerged from talks without a concrete plan to guarantee Ukraine's security – at least not one ...

NATO defense chiefs are holding a virtual meeting to discuss security guarantees for Ukraine as part of efforts to end Russia ...

NATO aircraft scrambled from Romania following a large-scale Russian attack on across Ukraine overnight, including in the ...

Officials told Reuters that the Pentagon is carrying out planning exercises on the support Washington could offer beyond ...

Ukrainian officials say more than 19,000 children have been unlawfully deported to Russia or occupied areas, with reports ...

Officials in Romania announced Wednesday that NATO deployed two German fighter jets in its airspace in response to a Russian ...

Any post-war security guarantees for Ukraine should resemble NATO membership as closely as possible, German Foreign Minister ...

After World War II, the United States, Canada and several western European nations signed a treaty for mutual defense in the ...