Volodymyr Zelensky has found himself leading a nation under attack by Russia, a far cry from the foul-mouthed teacher he played on television

'Russia has chosen the path of aggression against a sovereign and independent country,' Jens Stoltenberg says; Putin has sought to block Ukraine from joining Western security bloc

Russian leader says miliutary operation meant to 'protect people who have been subjected to bullying and genocide'

Ukrainian defense, foreign ministries' websites taken down in attack, as predicted by US officials ahead of full-blown invasion, to include airstrikes and push to Kyiv

Statement from Foreign Ministry expresses support for 'territorial integrity' of Ukraine; Israeli ambassador to Kyiv says he is prepared 'with all options' for potential evacuation

Former US president says Russian tactics were 'smart' and the US could replicate them on its border with Mexico

Diplomacy correspondent Lazar Berman proposes that the Iran nuclear deal and Russian tension are tied; Health reporter Nathan Jeffay brings us promising med-tech research

Reservists between the ages of 18 and 60 called up for a period of up to one year and would face 'criminal penalties' for not showing up

Russia president says he is still open to 'diplomatic solutions' after Blinken cancels Lavrov meeting; Australia, Japan join with US and EU sanctions on Moscow

US president says Russian government cut off from Western financing, 'elites' also targeted; UK, France and Germany also announce economic measures against Kremlin