President Obama is warning there will be “costs” for any military invasion of Ukraine. The country was once part of the Soviet Union. Its pivotal location between Russia and the rest of Europe is a big part of the story. New Yorker Editor David Remnick tells Anderson that "Putin is playing with fire."
Tom Foreman breaks down why Ukraine is important both politically and geographically.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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