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In Dark Zone, a race-to-the-finish thriller in the New York Times bestselling Tom Clancy´s Op-Center series, the brutal murder of an undercover agent reveals a plot to incite a full-fledged war between Russia and Ukraine.

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Using cutting edge techniques of cyber warfare and spycraft, Op-Center must respond to the rapidly unfolding crisis before the U.S. is forced to take sides in a conflict that could change history.

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