This incident led Britain's Home Secretary Winston Churchill to conclude the Royal Navy must convert its power source from coal to oil, to preserve its supremacy. Until then, the locally abundant coal was favoured over imported oil (mostly from Persia), but the speed and efficiency offered by oil convinced him that "Mastery itself was the prize of the venture." Subsequently, Churchill was asked by Prime Minister H. H. Asquith to become First Lord of the Admiralty, which he accepted. p. 11-12, pp. 153-154
