By 1914, Europe's six major powers were split into two alliances that would form the warring sides in World War I. Britain, France, and Russia formed the Triple Entente, while Germany, Austria-Hungary, and Italy joined in the Triple Alliance. These alliances weren't the sole cause of World War I, as some historians have contended, but they did play an important role in hastening Europe's rush to conflict.
The Central Powers
Following a series of military victories from 1862 to 1871, Prussian Chancellor Otto von Bismarck formed a German state out of several small principalities. After unification, Bismarck feared that neighboring nations, particularly France and Austria-Hungary, might act to destroy Germany. Bismarck wanted a careful series of alliances and foreign policy decisions that would stabilize the balance of power in Europe. Without them, he believed, another continental war was inevitable.
