Before the war, Forrest amassed substantial wealth as a cotton plantation owner, horse and cattle trader, real estate broker, and slave trader. In June 1861, he enlisted in the Confederate Army and became one of the few soldiers during the war to enlist as a private and be promoted to general without any prior military training. An expert cavalry leader, Forrest was given command of a corps and established new doctrines for mobile forces, earning the nickname "The Wizard of the Saddle". His methods influenced future generations of military strategists, although the Confederate high command is seen by some commentators to have underappreciated his talents.