Vitaly Klitschko says he hopes diplomatic efforts will avert an attack, warning that 'if not, we have to take weapons in our hands'

White House denies comments, says president only spoke of 'a distinct possibility that the Russians could invade Ukraine in February;' US refers Ukraine crisis to Security Council

Pileup of difficult moments presents challenge to twin pillars of Biden’s candidacy -- that he could get things done competently at home and restore America’s standing abroad

President Zelensky insists situation under control; Defense Minister Reznikov admits 'risk' but notes massed Russian troops on border are not forming battle groups

The Jewish president says 'Israel is often an example for Ukraine' and 'both Ukrainians and Jews value freedom,' as Russia amasses some 100,000 troops on border

Yevgen Korniychuk says move, which would include opening embassy branch, hinges on expanded defense ties with Israel

Israeli President Herzog: “Antisemitism ultimately lurks into other forms of intolerance and hate. It poisons our society and damages us all."

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

US president expresses concern, support for Ukraine's sovereignty, plans to talks to leaders; Moscow denies accusation that comes amid troop buildup on border

Kremlin rebuffs allegations that military buildup reflects Moscow's aggressive intentions