Ukrainian leader urges Russian citizens to pressure leader Putin to stop invasion, amid reports of fierce national resistance to attack

Ukrainian president finds himself at center of Europe’s most significant conflict since World War II

Russian spokeswoman warns relations are near a 'point of no return' as America, EU tighten screws on Russian economy in response to invasion of Ukraine

Most moving to Poland and Moldova, and many more are heading for the borders, officials say

From attempts at negotiations and the danger posed to civilians, to punitive measures and the pope's personal appeal -- a look at the latest developments

In televised address, Russian leader urges Ukrainian military to 'take power in your own hands' from 'this gang of drug addicts and neo-Nazis'

Meanwhile, UK and North European allies say strong sanctions needed on 'Putin's inner circle'

At the same time, the Kremlin says it is willing to meet with Ukrainian officials for talks aimed at resolving the burgeoning war

Rights office of international body says unclear how many have been released; independent monitor says demonstrators detained in 51 cities across Russia

Degree of Putin's frustration with US opposition to his incursion will dictate whether he prioritizes deal to prevent nuclearized neighbor over effort to push back against the West