The 5th Florida Infantry Regiment served in E.A. Perry's Florida Brigade alongside the 2nd and 8th Florida. Perry's Brigade served under Anderson’s Division of Longstreet’s First Corps, of the Army of Northern Virginia.They fought in the Battles of Second Manassas, Sharpsburg, and Antietam from Aug-Sep 1862. Colonel David Lang took command of the Florida Brigade and led them at Fredricksburg in Dec 1862 and Chancellorsville in May 1863. Under Col.