World-renowned author and expert Daniel Yergin joins Sir Richard Dearlove and Julia Macfarlane to discuss who holds the most cards when it comes to energy security and hard power. In the 70s, the west controlled the biggest stocks of fuel - now the majority comes from developing nations. As the Russia-Ukraine crisis exacerbates an already painful fuel crisis in Europe, One Decision examines how the big players use their resources as weapons of influence. 

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