This chapter details how, during the 14 years before the outbreak of the First World War, Britain comprehensively revised her diplomatic alignments, readjusted her military strategy, and rearranged her armed forces to meet the threat posed by the European powers. In the process, she signed an alliance with Japan and ententes with France and Russia, she concentrated her fleet in the North Sea and the Channel, and developed a plan to prevent Germany from imposing a quick defeat on France by mobilising a new British Expeditionary Force. However, there remained one flaw in all this: she had not really considered the Ottoman Empire or, indeed, the wider question of her relations with the Muslim societies in Turkey, Persia, Egypt, and especially India. This oversight was a by-product of her new strategy, which frankly made security in Europe the chief object and in effect downgraded the importance of the imperial world. As a result, Britain failed to take full account of changes in the Middle East, Asia, and Africa engendered by the Great War.