The Latest Breaking News from NATO

Russian forces fired missiles at several Ukrainian cities and landed troops on its south coast on Thursday, right after Russian President Vladimir Putin authorised what he called a special military operation in eastern Ukraine.

World leaders are reacting to Russian President Vladimir Putin’s announcement of military action in Ukraine with outrage and vows to both tighten sanctions and hold the Kremlin accountable

He threatened to impose the harshest sanctions ever on Russia. He worked to galvanize U.S. allies into a united front. He supplied Ukraine with more weapons than any American president before him. And he beefed up U.S. forces on NATO's eastern flank as reassurance of his commitment.

Russian troops launched their anticipated attack on Ukraine on Thursday, as President Vladimir Putin cast aside international condemnation and sanctions and warned other countries that any attempt to interfere would lead to “consequences you have never seen.” Big explosions were heard before dawn in Kyiv, Kharkiv and Odesa as world…

President Putin has given approval to a ‘special military operation’ in the Donbas region.

Russian troops have launched their anticipated attack on Ukraine

Divisions in a rapidly changing Republican Party are evident in the divergent responses to the tensions in Ukraine

Neither side is ideal. But both law and justice are far more on Ukraine's side than Vladimir Putin's.

Ukrainian officials said their forces were battling Russians on multiple fronts and had lost control of the decommissioned Chernobyl nuclear power plant.

Following months of warnings from the US and allies, Russian President Vladimir Putin has finally pulled the trigger on a military invasion in Ukraine. Here's what you need to know.

As explosions, artillery fire and air raid sirens are heard in the Ukraine capital Kyiv, NATO has agreed to beef up its land, sea and air forces on its eastern flank near Ukraine and Russia.