The Battle of Antietam, also called the Battle of Sharpsburg, particularly in the Southern United States, took place during the American Civil War on September 17, 1862, between Confederate General Robert E. Lee's Army of Northern Virginia and Union Major General George B. McClellan's Army of the Potomac near Sharpsburg, Maryland, and Antietam Creek. Part of the Maryland Campaign, it was the first field army–level engagement in the Eastern Theater of the American Civil War to take place on Union soil. It remains the bloodiest day in American history, with a tally of 22,727 dead, wounded, or missing on both sides. Although the Union Army suffered heavier casualties than the Confederates, the battle was a major turning point in the Union's favor.
The Confederate States Marine Corps (CSMC), also referred to as the Confederate States Marines, was a branch of the Confederate Navy during the American Civil War. It was established by an act of the Provisional Congress of the Confederate States on March 16, 1861. The Corps' manpower was initially authorized at 46 officers and 944 enlisted men, and was increased on September 24, 1862, to 1,026 enlisted men. The organization of the Corps began at Montgomery, Alabama, and was completed at Richmond, Virginia, when the capital of the Confederate States was moved to that location. The headquarters and main training facilities remained in Richmond throughout the war, located at Camp Beall on Drewry's Bluff and at the Gosport Shipyard in Portsmouth, Virginia. The last Marine unit surrendered to the Union army on April 9, 1865, with the Confederacy itself capitulating a month later.
The Battle of Cloyd's Mountain occurred in Pulaski County, Virginia, on May 9, 1864, during the American Civil War. The fight has also been called the Battle of Cloyd's Farm. A Union Army division led by Brigadier General George Crook defeated a Confederate Army consisting of three regiments, one battalion, and Confederate Home Guard. The Confederate force was led by Brigadier General Albert G. Jenkins and Colonel John McCausland. Although the intense fighting portion of this battle may have lasted for only one hour, it was southwestern Virginia's largest fight of the Civil War.
The siege of Corinth was an American Civil War engagement lasting from April 29 to May 30, 1862, in Corinth, Mississippi. A collection of Union forces under the overall command of Major General Henry Halleck engaged in a month-long siege of the city, whose Confederate occupants were commanded by General P.G.T. Beauregard. The siege resulted in the capture of the town by Federal forces.
The 15th Pennsylvania Cavalry Regiment, known as the Anderson Cavalry and the 160th Volunteers, was a three-year cavalry regiment in the Union Army during the American Civil War. It was recruited and formed in the summer of 1862 by officers and men of the Anderson Troop, an independent company of the Pennsylvania Volunteers that had been mustered the previous November.
The 2nd Ohio Infantry Regiment was an infantry regiment in the Union Army during the American Civil War.
The 7th Wisconsin Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War. It was a component of the famous Iron Brigade in the Army of the Potomac throughout the war.
The 17th Wisconsin Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War. It was popularly known as the Irish Brigade, due to its composition of mostly Irish American immigrants.
The 32nd Wisconsin Infantry Regiment was a volunteer infantry regiment that served in the Union Army during the American Civil War.
The 33rd Illinois Infantry Regiment was an infantry regiment from Illinois that served in the Union Army during the American Civil War. A number of the soldiers were college students and graduates, and for a time the regiment included a 17-piece band. The unit fought at Fredericktown in 1861, Cotton Plant in 1862, the Vicksburg campaign and Fort Esperanza in 1863, and at Spanish Fort in 1865. The original enlistees were mustered out in October 1864 while the veterans and recruits were mustered out in December 1865.
The 22nd Alabama Infantry Regiment was an infantry regiment that served in the Confederate Army during the American Civil War.
The 123rd Regiment Illinois Volunteer Infantry, was an infantry and mounted infantry regiment that served in the Union Army during the American Civil War. In 1863 and 1864 it was temporarily known as the 123rd Illinois Volunteer Mounted Infantry Regiment, as part of Wilder's Lightning Brigade.
The 114th Illinois Infantry Regiment was an infantry regiment from Illinois that served in the Union Army during the American Civil War. Formed in September 1862, the regiment served in Ulysses S. Grant's Central Mississippi campaign, in the Vicksburg campaign, at Brices Cross Roads, at Tupelo, in the 1864 Missouri campaign, at Nashville, and at Spanish Fort. At Nashville, the unit participated in the decisive attack on Shy's Hill. In 1865, the regiment was reassigned as pontoniers. The regiment was mustered out in August 1865.
The 73rd Regiment Indiana Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 72nd Indiana Infantry Regiment, also known as 72nd Indiana Mounted Infantry Regiment, was an infantry and mounted infantry regiment that served in the Union Army during the American Civil War. The regiment served as mounted infantry from March 17, 1863, to November 1, 1864, notably as part of the Lightning Brigade. during the Tullahoma and Chickamauga Campaigns.
The 11th Pennsylvania Cavalry was a cavalry regiment that served in the Union Army during the American Civil War.
The 1st Louisiana Regulars Infantry Regiment, often referred to as the 1st Louisiana Infantry Regiment (Regulars), was an infantry regiment from Louisiana that served in the Confederate States Army during the American Civil War.
The 3rd Missouri Light Battery was an artillery battery of the Confederate States Army during the American Civil War. The battery originated as a Missouri State Guard unit active in late 1861, and was officially transferred to the Confederate States Army on January 28, 1862. The battery provided artillery support at the Battle of Pea Ridge in March 1862, and was lightly engaged at the Battle of Iuka in September. In October 1862, the battery was lightly engaged at the Second Battle of Corinth and saw action at the Battle of Davis Bridge, where it lost at least one cannon. The 3rd Light Battery saw action at the Battle of Champion Hill on May 16, 1863, and had its cannons captured at the Battle of Big Black River Bridge the next day. After participating in the Siege of Vicksburg, the battery was captured on July 4, 1863, and was paroled and exchanged. The battery was then consolidated with the Jackson Missouri Battery; the 3rd Light Battery designation was continued. In early 1864, the battery received replacement cannons and was assigned to the defense of Mobile Bay. The 3rd Light Battery saw action at the Battle of Spanish Fort in March and April 1865. When the Confederate Department of Alabama, Mississippi, and East Louisiana surrendered on May 4, 1865, the battery was again captured; the men of the battery were paroled on May 10, ending their military service.
The Battle of Riggins Hill was a minor engagement in western Tennessee during the American Civil War. A Confederate raiding force under Colonel Thomas Woodward captured Clarksville, Tennessee, threatening Union shipping on the Cumberland River. Several Union regiments led by Colonel William Warren Lowe advanced from nearby Fort Donelson and drove off the Confederates after a struggle lasting less than an hour. The action occurred during the Confederate Heartland Offensive but only affected the local area.
Morgan's Christmas Raid was carried out by Confederate Brigadier General John Hunt Morgan between December 22, 1862, and January 5, 1863. Morgan intended to cut the supply lines to the Union Army of the Cumberland in Tennessee. The Union used the Louisville and Nashville Railroad, and Morgan had identified two 500-foot (150 m) long trestle bridges at Muldraugh Hill that could be burnt. Morgan's 4,000-strong cavalry force left Alexandria, Tennessee, on December 22 and passed into Kentucky on Christmas Eve, defeating part of the 2nd Michigan Cavalry Regiment near Tompkinsville. They fought and defeated an Indiana cavalry detachment on Christmas Day at Bear Wallow, Barren County. The U.S. Army sent forces under Colonel John Marshall Harlan and Major General Joseph J. Reynolds to try to catch Morgan. However, Morgan used ruses to distract his pursuers. Morgan captured a Union stockade at Bonnieville on December 26 and on December 27 captured Elizabethtown before burning the bridges at Muldraugh Hill.
United States (Union)
CSA (Confederacy) 
