You have to go back to Boris Karloff to discover a similar blend of brutishness and delicacy.

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The two predecessor exchanges dated back to the presidency of Boris Yeltsin in the early-to-mid-1990s, following the collapse of the Soviet Union in 1991.

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Back in 1995, then President Boris Yeltsin talked darkly about Bosnia being the first sign of what could happen with NATO's expansion.

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"Boris Berezovsky was one of the most powerful men in Russia back in the 1990s, " said the BBC's Moscow correspondent, Steve Rosenberg.

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But for the vagaries of the electoral, David Jones and Boris Johnson would be parliamentary neighbours ("I fought Clwyd South - and Clwyd South fought back") so perhaps Mr Jones shouldn't take Mr Johnson's intervention personally.

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