Russia's economic war against Ukraine

Russia's President Vladimir Putin (front C) and Defence Minister Sergei Shoigu (front L) walk to watch military exercises upon his arrival at the Kirillovsky firing ground in the Leningrad region, on March 3, 2014.
Russia's President Vladimir Putin (front C) and Defence Minister Sergei Shoigu (front L) walk to watch military exercises upon his arrival at the Kirillovsky firing ground in the Leningrad region, on March 3, 2014.

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    Russia's economic war against Ukraine

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Paula Newton speaks to Jeffrey Sachs about why Russia appears to want to prevent Ukraine from allying with the West.