Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

Armed masked men who call themselves members of Ukraine's disbanded elite Berkut riot police force stand at their checkpoint under a Russian flag on a highway that connect Black Sea Crimea peninsula to mainland Ukraine near the city of Armyansk, on February 28, 2014. The spiralling tensions in a nation torn between the West and Russia took today a severe new turn when Ukraine's interim president Oleksandr Turchynov accused Russian soldiers and local pro-Kremlin militia of staging raids on Crimea's main airport and another base on the southwest of the peninsula where pro-Moscow sentiments run high.
Armed masked men who call themselves members of Ukraine's disbanded elite Berkut riot police force stand at their checkpoint under a Russian flag on a highway that connect Black Sea Crimea peninsula to mainland Ukraine near the city of Armyansk, on February 28, 2014. The spiralling tensions in a nation torn between the West and Russia took today a severe new turn when Ukraine's interim president Oleksandr Turchynov accused Russian soldiers and local pro-Kremlin militia of staging raids on Crimea's main airport and another base on the southwest of the peninsula where pro-Moscow sentiments run high.

    JUST WATCHED

    What is Putin's game plan in Ukraine?

MUST WATCH

What is Putin's game plan in Ukraine?

Russia accused of "armed invasion" in Ukraine. The Wilson Center's Jane Harman joins CNN to discuss.

What is Putin's game plan in Ukraine?

Russia accused of "armed invasion" in Ukraine. The Wilson Center's Jane Harman joins CNN to discuss.