Carl Gustaf Emil Mannerheim was a Finnish military leader and statesman. He served as the military leader of Finland during World War II and later became the country's president. Mannerheim is known for his role in leading the Finnish forces during the Winter War against the Soviet Union. He is also recognized for his contributions to the development of the Finnish military and his efforts in maintaining Finland's independence. Mannerheim is considered a national hero in Finland and is remembered for his leadership and strategic skills.