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 Russian President Vladimir Putin, his wife Lyudmila, Syrian President Bashar al-Asad and his wife Asma pose for a picture during their meeting in Moscow's Kremlin, in January 2005.
 Russian President Vladimir Putin, his wife Lyudmila, Syrian President Bashar al-Asad and his wife Asma pose for a picture during their meeting in Moscow's Kremlin, in January 2005.

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    What is Russia up to in Syria?

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What is Russia up to in Syria?

New satellite photos reveal Russia is increasing its troop presence in Syria. CNN's Barbara Starr reports.

What is Russia up to in Syria?

New satellite photos reveal Russia is increasing its troop presence in Syria. CNN's Barbara Starr reports.