Alasdair Mcleod puts the pieces together:
For a considerable time, China has followed a policy of replacing the dollar as its settlement currency for the purposes of trade. After all, China dominates international trade, and on a purchasing power parity basis, her economy rivals that of the US, and if it hasn’t done so already will soon overtake it. From China’s point of view, being forced by her trading partners to accept and pay in dollars is an irritating anachronism, a hangover from American imperialism.
The purpose of this article is to put the proposed oil for yuan contract, which has been planned for some time, into its proper context. It requires knowledge of the history of how China’s policy of internationalising the yuan has been developed, and will be brought up to date with an analysis of how the partnership of China and Russia is taking over as the dominant power over the Eurasian land-mass, a story that is now extending to the Middle East.
This fulfils the prophecy of the founder of geopolitics, Sir Halford Mackinder, made over a century ago. He described the conjoined continents of Eurasia and Africa as the World Island, and that he who controls the Heartland, which lies between the Volga and the Yangtze, and the Himalayas and the Artic, controls the World Island.ii The Chinese-Russian partnership is well on its way to controlling the World Island, including sub-Saharan Africa. We know that successive Soviet and Russian leaders have been guided by Mackinder’s concept.