Bismarck’s successors, for a whole complex of reasons, failed to renew the treaty with Russia, thus leaving her available as an ally for France. It was a terrible mistake. For Russia, if this newly powerful Germany was not an ally, she was a threat, and one that could be countered only by a military alliance with France. France was in any case a plentiful source of the investment capital that Russia needed to finance the modernization of her economy. So in 1891 the two powers concluded a treaty, the Dual Entente, to confront the Triple Alliance, and the rival groups began to compete in the enhancement of their military power.
The British initially regarded this alliance between her traditional adversaries with alarm, and the dynamics of international relations would normally have dictated an alliance with Germany as a natural consequence. That this did not happen was due partly to the traditional British reluctance to become involved in any entangling continental alliances, and partly to extraordinarily clumsy German diplomacy. More important than either, however, was the German decision that we have already noted, to build a navy that could challenge the British command of the seas.
Given that she already had the most powerful army in the world, it was not immediately evident—at least not to the British—why Germany needed an ocean-going navy at all. Hitherto, in spite of industrial competition, British relations with Germany had been friendly rather than otherwise. But now there began a ‘naval race’, for quantitative and qualitative superiority in ships, that was to transform British public opinion. By 1914 Britain had pulled decisively ahead, if only because she was prepared to devote greater resources to shipbuilding and did not need, as did the Germans, to sustain the burden of an arms race by land as well. But the British remained concerned not so much with the fleet that Germany had already built as with that which she yet might—especially if a successful war gave her military hegemony over the Continent.
So Britain mended her fences with her traditional rivals. In 1904 she settled her differences with France in Africa, establishing a relationship that became known as l’entente cordiale. There remained the Russian Empire, whose southward expansion towards the frontiers of India had given Victorian statesmen continual nightmares, and had led the British in 1902 to conclude their first formal alliance for a nearly a century with the emerging power of Japan. Three years later Russia was defeated and brought to the verge of revolution by war with Japan, so in 1907 she was happy to conclude an agreement with Britain over the disputed borderlands of Persia and Afghanistan, thus creating a ‘Triple Entente’. Beyond Europe, Britain took care to remain on friendly terms with the United States. American appetite for naval expansion had been whetted by victory over Spain in 1899 and annexation of her possessions in the Pacific, but British statesmen realized that America’s immense resources meant that confrontation with her should be avoided at almost any cost. So traditional rivalries were appeased by the virtual abandonment of a British naval presence in the western hemisphere and the careful cultivation of a harmony between British and American elites based on ‘Anglo-Saxon’ consanguinity and shared political values.
Although Britain concluded no formal alliances except that with Japan, the Germans complained that the British were weaving a web to encircle and imprison them, and relations grew steadily worse. In 1911, when the Germans attempted to humiliate the French by challenging their influence in Morocco with a naval demonstration off Agadir, the British made their support for the French explicit. Many people in Britain and Germany began to regard each other as natural enemies, and war between them as inevitable. But, when war did break out three years later, it was at the other end of Europe, in the Balkans, as Bismarck himself had gloomily foreseen.