The famous general during the Napoleonic Wars known for his military strategy is Duke Arthur Wellesley, better known as the Duke of Wellington. He is best known for his pivotal role in defeating Napoleon Bonaparte at the Battle of Waterloo in 1815. Wellington's military career spanned several decades, during which he earned a reputation for outstanding leadership, innovative strategies, and decisive command in various battles across Europe. His ability to unite British, Dutch, Belgian, and Prussian forces was crucial to overcoming Napoleon, marking the end of the Napoleonic Wars and ushering in a period of relative peace in Europe.