The country that emerged victorious in the wake of the Napoleonic Wars, shaping political structures immediately after, was Great Britain. Following the defeat of Napoleon in 1815, Britain established itself as the world's leading colonial power and significantly influenced the post-war balance of power. The Congress of Vienna sought to restore stability in Europe, leading to a system of alliances and conflicts in the 19th century. Britain's victory not only strengthened its military and economic power but also accelerated its role in the shaping of global affairs and the establishment of imperialism during the Victorian era.