Albert Sidney Johnston served as a general 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.
Braxton Bragg was an American army officer during the Second Seminole War and Mexican–American War and Confederate general in the Confederate Army during the American Civil War, serving in the Western Theater. His most important role was as commander of the Army of Mississippi, later renamed the Army of Tennessee, from June 1862 until December 1863.
Simon Bolivar Buckner was an American soldier, Confederate soldier, and politician. He fought in the United States Army in the Mexican–American War. He later fought in the Confederate States Army during the American Civil War. After the war, he served as the 30th governor of Kentucky.
The Battle of Stones River, also known as the Second Battle of Murfreesboro, was a battle fought from December 31, 1862, to January 2, 1863, in Middle Tennessee, as the culmination of the Stones River Campaign in the Western Theater of the American Civil War. Of the major battles of the war, Stones River had the highest percentage of casualties on both sides. The battle ended in Union victory after the Confederate army's withdrawal on January 3, largely due to a series of tactical miscalculations by Confederate Gen. Braxton Bragg, but the victory was costly for the Union army. Nevertheless, it was an important victory for the Union because it provided a much-needed boost in morale after the Union's recent defeat at Fredericksburg and also reinforced President Abraham Lincoln's foundation for issuing the Emancipation Proclamation, which ultimately discouraged European powers from intervening on the Confederacy's behalf.
William Joseph Hardee was a career U.S. Army and Confederate States Army officer. For the U.S. Army, he served in the Second Seminole War and in the Mexican–American War, where he was captured and exchanged. In the American Civil War, he sided with the South and became a general. Hardee served in the Western Theater and quarreled sharply with two of his commanding officers, Braxton Bragg and John Bell Hood. He served in the Atlanta Campaign of 1864 and the Carolinas Campaign of 1865, where he surrendered with General Joseph E. Johnston to William Tecumseh Sherman in April. Hardee's writings about military tactics were widely used on both sides in the conflict.
The Battle of Fort Henry was fought on February 6, 1862, in Stewart County, Tennessee, during the American Civil War. It was the first important victory for the Union and Brig. Gen. Ulysses S. Grant in the Western Theater.
Samuel Ryan Curtis was an American military officer and one of the first Republicans elected to Congress. He was most famous for his role as a Union Army general in the Trans-Mississippi Theater of the American Civil War, especially for his victories at the Battles of Pea Ridge in 1862 and Westport in 1864.
The Army of Tennessee was the principal Confederate army operating between the Appalachian Mountains and the Mississippi River during the American Civil War. It was formed in late 1862 and fought until the end of the war in 1865, participating in most of the significant battles in the Western Theater.
The Army of the Tennessee was a Union army in the Western Theater of the American Civil War, named for the Tennessee River.
The Battle of Perryville, also known as the Battle of Chaplin Hills, was fought on October 8, 1862, in the Chaplin Hills west of Perryville, Kentucky, as the culmination of the Confederate Heartland Offensive during the American Civil War. Confederate Gen. Braxton Bragg's Army of Mississippi initially won a tactical victory against primarily a single corps of Maj. Gen. Don Carlos Buell's Union Army of the Ohio. The battle is considered a strategic Union victory, sometimes called the Battle for Kentucky, since Bragg withdrew to Tennessee soon thereafter. The Union retained control of the critical border state of Kentucky for the remainder of the war.
The Tullahoma campaign was a military operation conducted from June 24 to July 3, 1863, by the Union Army of the Cumberland under Maj. Gen. William Rosecrans, and is regarded as one of the most brilliant maneuvers of the American Civil War. Its effect was to drive the Confederates out of Middle Tennessee and to threaten the strategic city of Chattanooga.
The Battle of Belmont was fought on November 7, 1861, in Mississippi County, Missouri. It was the first combat test in the American Civil War for Brig. Gen. Ulysses S. Grant, the future Union Army general in chief and eventual U.S. president, who was fighting Major General Leonidas Polk. Grant's troops in this battle were the "nucleus" of what would become the Union Army of the Tennessee.
The Battle of Mill Springs, also known as the Battle of Fishing Creek in the Confederacy, and the Battle of Logan's Cross Roads or Battle of Somerset in the Union, was fought in Wayne and Pulaski counties, near current Nancy, Kentucky, on January 19, 1862, as part of the American Civil War. The Union victory concluded an early Confederate offensive campaign in south central Kentucky.
Alexander Peter Stewart was a career United States Army officer, college professor, and a general in the Confederate States Army during the American Civil War. He fought in many of the most significant battles in the Western Theater of the war and briefly took command of the Army of Tennessee in 1865.
The western theater of the American Civil War encompassed major military operations in the states of Alabama, Georgia, Florida, Mississippi, North Carolina, Kentucky, South Carolina and Tennessee, as well as Louisiana east of the Mississippi River. Operations on the coasts of these states, except for Mobile Bay, are considered part of the Lower Seaboard Theater. Most other operations east of the Appalachian Mountains are part of the eastern theater. Operations west of the Mississippi River took place in the trans-Mississippi theater.
The trans-Mississippi theater of the American Civil War was the scene of the major military operations west of the Mississippi River. The area is often thought of as excluding the states and territories bordering the Pacific Ocean, which formed the Pacific coast theater of the American Civil War (1861–1865).
The Department of the Ohio was an administrative military district created by the United States War Department early in the American Civil War to administer the troops in the Northern states near the Ohio River.
2nd Arkansas Light Artillery, (1860–1865) was a Confederate Army artillery battery which served during the American Civil War. The battery spent the majority of the war serving in Confederate forces east of the Mississippi River. The battery is also referred to as the Clark County Artillery, Robert's Arkansas Battery and Wiggins Arkansas Battery.
Sterling Alexander Martin Wood commonly referred to as S.A.M. Wood, was an American lawyer and newspaper editor from Alabama. He served as a Confederate general during the American Civil War until 1863, and resumed practicing law, served as a state legislator, and later taught law.
The 7th Arkansas Volunteer Infantry (1861−1865) was a Confederate Army infantry regiment during the American Civil War. Organized mainly from companies, including several prewar volunteer militia companies, raised in northeastern Arkansas, the regiment was among the first transferred to Confederate service, and spent virtually the entire war serving east of the Mississippi River. After the unit sustained heavy casualties in the Battle of Shiloh and the Kentucky Campaign, the unit spent most of the rest of the war field consolidated with the 6th Arkansas Infantry Regiment to form the 6th/7th Arkansas Infantry Regiment.
Confederate States of America 
Confederate States Army 
