Winfield Scott was an American general. Scott was known as "Old Fuss and Feathers" and the "Grand Old Man of the Army", he served on active duty as a general longer than any other person in American history, is rated as one of the Army's most senior commissioned officers, and is ranked by many historians as the best American commander of his time. Over the course of his 53-year career, he commanded forces in the War of 1812, the Black Hawk War, the Mexican–American War, and the Second Seminole War. He was the army's senior officer at the start of the American Civil War, and conceived the Union strategy known as the Anaconda Plan, which was used to defeat the Confederacy. He served as Commanding General of the United States Army for twenty years, longer than any other holder of the office.