Churchill converts the Royal Navy to oil
In 1911–1914, as First Lord of the Admiralty, Winston Churchill switched the British fleet from Welsh coal to oil, which gave faster, longer-ranged ships but tied national security to supplies Britain did not possess. To secure that supply the British government bought a controlling stake in the Anglo-Persian Oil Company in 1914, fusing a strategic military decision with state ownership of a foreign oil concession. Churchill's rule for managing the new dependence was 'safety and certainty in oil lie in variety and variety alone.'
