Saddam, Gaddafi, Iran, Venezuela – they all tried but couldn’t do it. But Russia is on a different level altogether. The beauty of the game-changing, gas-for-rubles, geoeconomic jujitsu applied by Moscow is its stark simplicity. Russian President Vladimir Putin’s presidential decree on new payment terms for energy products, predictably, was misunderstood by the collective west. The Russian government is not exactly demanding straightforward payment for gas in rubles. What Moscow wants is to be paid at Gazprombank in Russia, in its currency of choice, and not at a Gazprom account in any banking institution in western capitals. That’s the essence...