Albert Sidney Johnston, American general (born 1803)

General Albert Sidney Johnston was an American military officer who served as a general officer in three different armies: the Texian Army, the United States Army, and the Confederate States Army. He saw extensive combat during his 34-year military career, fighting actions in the Black Hawk War, the Texas-Indian Wars, the Mexican–American War, the Utah War, and the American Civil War, where he died on the battlefield.