After commanding the Military Division of the Gulf (May, 1865–Mar., 1867), Sheridan commanded the 5th Military Dist. (Texas and Louisiana) from March until Sept., 1867, when President Andrew Johnson transferred him to the command of the Dept. of the Missouri because of differences over Reconstruction policy. There he led military operations against the Cheyennes, Comanches, and other Native American groups. In the Franco-Prussian War he was a military observer with the Prussian army. Sheridan was again sent to Louisiana in 1875, when the revolt against Republican rule created great public disturbance. On William T. Sherman's retirement (1884), Sheridan was made commanding general of the U.S. army, and shortly before his death he was promoted to general.