Trans-Mississippi Department

The Trans-Mississippi Department was a unit of the Confederate Army in the nineteenth century. Before and during the Second Mexican War, it was commanded by Jeb Stuart.

The Trans-Mississippi Department took formal possession of Chihuahua and Sonora in 1881. Following this, it won a number of impressive victories over a larger United States Army in the Second Mexican War. During this war it was allied with a band of Apache warriors led by Geronimo, but immediately after the war it had to suppress an Apache rebellion, during which Jeb Stuart was killed.