EU foreign ministers meet in Brussels in effort to show 'unprecedented unity' in face of Putin's threats to invade Ukraine; Ireland says Russian war games not welcome off its coast

Deputy Foreign Minister Ryabkov says Kremlin 'disappointed' with signals coming from NATO and Western Europe as he prepares to meet US Deputy Secretary of State Sherman in Geneva

Speaking during his annual marathon news conference, Russian president refuses to commit to not invading Ukraine, demands NATO pledge on not expanding eastwards

Russian president says his country cannot allow rockets and missile defense proliferation by NATO and US to threaten Moscow

US president threatens stiff economic sanctions, military bolstering of NATO allies; Russian leader says NATO to blame for tensions; White House describes meeting as 'useful'

Biden warns Washington will make it 'very, very difficult' for Moscow to take military action against its neighbor

Russia is keeping some 90,000 troops near the border following wargames and Kyev has warned that Moscow could be plotting a coup

Moscow also orders closure of the alliance's office in the Russian capital; FM Lavrov: NATO is 'becoming more and more aggressive'

Asked about buying more S-400 systems, Turkish President Erdogan says Ankara will make its own defense choices

Boris Johnson condemns 'barbaric' attack, which is said to have killed over 60; military alliance's chief says priority remains to evacuate as many people as quickly as possible