The winners and losers in the Middle East
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The Middle East: Who are the winners and losers?

A number of localised conflicts in the Middle East - in Syria, Iraq and Yemen - are being influenced by the overarching strategic fight between Saudi Arabia and Iran.

The BBC's Security Correspondent, Frank Gardner, likens the power struggle to a giant game of chess. He takes a look at where the various players stand as we begin 2018.

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