In 1806 Napoleon crushed the fearsome Prussian military machine The humiliation of military defeat forced the Prussian king into much-needed military reform The new Prussian army that emerged became one of the finest in Europe due in part to the organizational genius of Scharnhorst & Gneisenau & in part due to Field-Marshal Prince Bl&cher who drove his regiments to fight with relentless vigor In 1813 Prussia rejoined the war against Napoleonic France & the Prussian army under Bl&cher although sometimes playing second fiddle to Austria Russia & Great Britain was a major force in bringing an end to Napoleon Bonaparte&s rule The Prussians played a major part in Napoleon&s defeat at Waterloos Prussia&s reward was the recovery of her lost territories as well as the whole of the Rhineland & Westphalia Prussia therefore emerged from the Napoleonic Wars as the dominant power in Germany