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Image caption Surkov, left, was a close adviser to the president. Russian President Vladimir Putin has dismissed one of his closest advisers, Vladislav Surkov. The secretive strategist was known as the grey cardinal in Russia due to his perceived influence on the president behind the scenes. He was widely seen as an aide who helped Mr Putin cement his hold on power. Mr Surkov oversaw policy towards Ukraine, but was recently relieved of some of that responsibility. Dmitry Kozak, a political veteran and close ally of the president, took over the Ukraine role earlier this month. The Kremlin did not make it clear whether Mr Surkov would be given a new position. Why you can trust BBC News Full story

18 February