 Complete the following phrase:  From the end of the Napoleonic Wars in 1815 until the First World War in 1914, the United Kingdom played the role of offshore-balancer in Europe, where the balance of power was the main aim. It was also in this time that the British Empire became the largest empire of all time. The global superiority of British military and commerce was guaranteed by domice of a Europe lacking in strong nation-states, and the presence of the Royal Navy on all of the worlds oceans and seas. In 1905, the Royal Navy was superior to any two navies combined in the world. It provided services such as suppression of piracy and slavery. In this era of peace, though, there were several wars between the major powers: the Crimean War, the 