Middle Military Division

Union miltary division which took part in the Shenadoah Valley Campaign of 1864 during the American Civil War.

In the summer of 1864, Confederate general Jubal Early's army had defeated several Union armies, had advanced close to Washington, D.C., and continued to operate in the Shenandoah Valley into August. Faced with this continued threat, the Union high command created the Middle Military Department and ordered cavalry commander, Phillip Sheridan, to command it.

Its field forces were collectively known as the Army of the Shenandoah. For composition and battles, see that page.