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As the conflict in Ukraine continues, so too does Russian President Vladimir Putin's denial of any Russian involvement. But a recent report from think tank the Atlantic Council used open source information and social media to find evidence of Russian troops across the border.

Using the Atlantic Council's methodology, VICE News correspondent Simon Ostrovsky follows the digital and literal footprints of one Russian soldier, tracking him from Eastern Ukraine to Siberia, to prove that Russian soldiers are fighting in Ukraine.

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