Responds to Major Hickman's inquiry about his service during the War of 1812. Discusses at length his experience raising volunteers in Tennessee at the beginning of the War of 1812 and includes a copy of a 11 July 1811 letter by William Eustice accepting his service and his volunteers. Also discusses his march to Natchez to protect New Orleans, and his sudden dismissal by the War Department. Inserts a copy of a 8 January 1813 letter from Secretary of War John Armstrong dismissing him and his troops from service. Explains that the dismissal aroused his ire, prompting him to write to the President (copies not included). He obeyed the order but kept in touch with the men, who immediately obeyed his call in September 1813. In concluding, Jackson notes that many of the men also served in the defense of New Orleans. At the end of the letter appears a 8 January 1839 attestation of accuracy by William Carroll, who served "as [Jackson's] Brigadier Inspector" during the campaigns of 1812 and 1813.