PBS NewsHour

Why Russia may end its 'unstable ceasefire' with Ukraine

American and European officials are growing increasingly alarmed by a Russian military build up of more than 100,000 troops along the border with Ukraine. The region has been a flashpoint since 2014, when Russia invaded and annexed Crimea, and supported separatists in two provinces of eastern Ukraine. John Yang reports on concerns that a full-scale Russian military invasion may be on the horizon.

Episode 327

7m 22s

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