US top diplomat, says diplomatic channels remain 'open' to avoid conflict but would require Russia to 'deescalate'; Biden, Putin to hold high-stakes call

With US predicting hostilities could break out on Wednesday, diplomatic efforts to prevent war intensify, but several nations pull their people out of Ukraine

Moscow's representative at Security Council meeting argues that measures imposed by individual countries may be unlawful; US rejects claim

Zelensky aide says massive Russian troop activity along border merely aimed at creating 'psychological pressure' and comes as no surprise to Kyiv

Internal American assessments say Putin has assembled 70% percent of the firepower needed for full-scale assault on Ukraine, but believe still no final decision whether to invade

Putin and Xi issue joint statement opposing NATO expansion and American moves in the Asia-Pacific region

Amid Ukraine crisis, Spanish newspaper publishes purported text of Washington offering 'reciprocal transparency measures' to Moscow on missile base activity

Lavrov, Blinken hold 'fairly candid' phone call on Ukraine tensions, as Russian FM claims 'the West doesn't want to fulfill its obligations' in ensuring Russia's security

Phone call between Blinken and Lavrov is latest in flurry of diplomatic meetings between senior diplomats from Moscow, Brussels and Washington over fears of looming conflict

As Russian troops amass on the Ukrainian border, Joseph Weisberg, author of 'Russia Upside Down,' argues that a little empathy - and eased sanctions - could go a long way