Antoine-Henri Jomini was a Swiss military officer and historian, known for his influential writings on military strategy during the early 19th century. He served in the armies of both Napoleon Bonaparte and Russia, and his experiences shaped his theories on warfare. Jomini's most notable work, "The Art of War," emphasizes the importance of decisive battles and the principles of maneuvering troops. Jomini's ideas laid the groundwork for modern military strategy and are still studied in military academies today. He introduced concepts such as the "decisive point" and the significance of logistics, which remain relevant in contemporary discussions of military operations and tactics.