The Fifth Military District of the U.S. Army was one of five temporary administrative units of the U.S. War Department that existed in the American South from 1867 to 1870.
General Philip Sheridan served as its first military governor, enforcing the Reconstruction Acts and removing some Confederate sympathizers from office.
His replacement was the Democrat Winfield Scott Hancock, who undid much of Sheridan's work.
In the three months between Sheridan's removal and Hancock's arrival in New Orleans, the Fifth was led by two interim commanders: Charles Griffin until his death from yellow fever, then Joseph A. Mower.
Several incidents were committed against black federal soldiers at Fort Brown in Brownsville, Texas, and elsewhere by Jayhawkers, Natives, desperados, etc.