Video Why Russia is invading Ukraine, explained in 2 minutes

In August, after months of increasingly assertive intervention into the Ukraine crisis, Russian President Vladimir Putin crossed a major line by invading the country's rebel-held east with Russian tanks and troops. Vox Foreign Editor Max Fisher explains Putin's reasons for invading are less obvious than you might think.

Produced by Joe Posner & Joss Fong
Photographs courtesy Getty Images

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