Otto Eduard Leopold, Prince of Bismarck, Duke of Lauenburg (1 April 1815 – 30 July 1898), known as Otto von Bismarck, was a conservative Prussian statesman who dominated German and European affairs from the 1860s until 1890. In the 1860s he engineered a series of wars that unified the German states (excluding Austria) into a powerful German Empire under Prussian leadership. With that accomplished by 1871 he skillfully used balance of power diplomacy to preserve German hegemony in a Europe which, despite many disputes and war scares, remained at peace. For historian Eric Hobsbawm, it was Bismarck, who "remained undisputed world champion at the game of multilateral diplomatic chess for almost twenty years after 1871, [and] devoted himself exclusively, and successfully, to maintaining peace between the powers."
Napoléon Bonaparte (born Napoleone di Buonaparte; 15 August 1769 – 5 May 1821) was a French military and political leader who rose to prominence during the latter stages of the French Revolution and its associated wars. As Napoleon I, he was Emperor of the French from 1804 to 1814 and again in 1815. Napoleon dominated European affairs for almost two decades while leading France against a series of coalitions in the Revolutionary Wars and the Napoleonic Wars. He won the large majority of his battles and seized control of most of continental Europe before his ultimate defeat in 1815. One of the greatest commanders in history, his campaigns are studied at military schools worldwide and he remains simultaneously one of the most celebrated and controversial political figures in European history. In civil affairs, Napoleon implemented a wide array of liberal reforms across Europe, including the abolition of feudalism, the establishment of legal equality and religious toleration, and the legalization of divorce. His lasting legal achievement, the Napoleonic Code, has been adopted to varying degrees by dozens of nations around the world.
3.Alexander the Great
Alexander III of Macedon (20/21 July 356 – 10/11 June 323 BC), commonly known as Alexander the Great , was a King (Basileus) of the Ancient Greek kingdom of Macedon and a member of the Argead dynasty. Born in Pella in 356 BC, Alexander succeeded his father, Philip II, to the throne at the age of twenty. He spent most of his ruling years on an unprecedented military campaign through Asia and northeast Africa, until by the age of thirty he had created one of the largest empires of the ancient world, stretching from Greece to Egypt and into northwest ancient India. He was undefeated in battle and is considered one of history's most successful military commanders.