The XI Corps was a corps of the U.S. Army during the American Civil War, best remembered for its involvement in the battles of Chancellorsville and Gettysburg in 1863. The corps was composed primarily of German-American regiments.
There were five corps in the Union Army designated as II Corps during the American Civil War. These formations were the Army of the Cumberland II Corps commanded by Thomas L. Crittenden from October 24, 1862, to November 5, 1862, later renumbered XXI Corps; the Army of the Mississippi II corps led by William T. Sherman from January 4, 1863, to January 12, 1863, renumbered XV Corps; Army of the Ohio II Corps commanded by Thomas L. Crittenden from September 29, 1862, to October 24, 1862, transferred to Army of the Cumberland; Army of Virginia II Corps led by Nathaniel P. Banks from June 26, 1862, to September 4, 1862, and Alpheus S. Williams from September 4, 1862, to September 12, 1862, renumbered XII Corps; and the Army of the Potomac II Corps from March 13, 1862, to June 28, 1865.
XXII Corps was a corps in the Union Army during the American Civil War. It was created on February 2, 1863, to consist of all troops garrisoned in Washington, D.C., and included three infantry divisions and one of cavalry. Many of its units were transferred to the Army of the Potomac during Grant's Overland Campaign.
The 23rd Pennsylvania Volunteer Infantry was an infantry regiment that fought in the Union Army during the American Civil War. Known for its colorful uniforms based upon the popular French Zouave style, the regiment served in the Eastern Theater.
The 90th Regiment, Pennsylvania Volunteer Infantry was a volunteer infantry regiment which served in the Union Army during the American Civil War. They wore chasseur-style uniforms, which each consisted of a dark blue habit veste with white trim, baggy sky-blue trousers and a dark blue kepi. The buttons on the habit veste were unique to the 90th Pennsylvania. They were the only Union regiment in the entire war to have a specific button design.
The 53rd Pennsylvania Volunteer Infantry was a volunteer infantry regiment in the Union Army during the American Civil War.
Julius H. Stahel-Számwald was a Hungarian soldier who emigrated to the United States and became a Union general in the American Civil War. After the war, he served as a U.S. diplomat, a mining engineer, and a life insurance company executive. He received the Medal of Honor for gallantry in action at the Battle of Piedmont in 1864.
Chapman Biddle was a member of the prominent Biddle family of Philadelphia, Pennsylvania, who served as an officer in the Union Army in the American Civil War. He commanded a brigade of infantry at the Battle of Gettysburg.
Robert Ogden Tyler was an American military officer in the Union Army during the American Civil War. He graduated from the United States Military Academy in 1853 and fought in the Yakima War and the Utah War. He commanded the Artillery Reserve in the Army of the Potomac at the Battle of Gettysburg in July 1863, where his artillery batteries played an important role in the Union victory. Tyler also led a division of heavy artillery turned infantry during the Overland Campaign in 1864. He was severely wounded at the Battle of Cold Harbor and served in administrative duties for the remainder of the war.
Henry Bohlen was a German-American Union Brigadier General of the American Civil War. Before becoming the first foreign-born Union general in the Civil War, he fought in the Mexican-American War, and in the Crimean War.
The 45th New York Infantry Regiment, also known as the 5th German Rifles, was an infantry regiment that served in the Union Army during the American Civil War. It was composed almost entirely of German immigrants. Formed approximately five months after the start of hostilities, the unit's service spanned almost the entirety of the war, and it saw action in several of the war's noteworthy battles, in both the Eastern and Western Theaters.
The 75th Regiment Pennsylvania Volunteer Infantry was a unit of the Union Army during the American Civil War. It was composed almost entirely of German-speaking residents of Philadelphia and newly arrived German immigrants. Total enrollment, over the course of the war, was 1,293 officers and men. The 75th Pennsylvania participated in several major battles including Second Bull Run, Chancellorsville, and Gettysburg. The regiment was transferred to the Western Theater in September, 1863. There, it participated in operations in Tennessee, before it was mustered out of service on September 1, 1865, following the close of the war.
The 12th Pennsylvania Reserve Regiment also known as the 41st Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army as part of the Pennsylvania Reserves infantry division during the American Civil War.
The 58th New York Infantry Regiment, also called the Polish Legion, was an infantry regiment of United States Volunteers in Union Army service during the American Civil War. The regiment was composed almost entirely of immigrant volunteers: Poles, Germans, Danes, Italians, Russians, and Frenchmen, most of whom were recruited at New York City in 1861.
The 100th Regiment Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 51st Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 41st United States Colored Infantry was an infantry regiment that served in the Union Army during the American Civil War. The regiment was composed almost entirely of African American enlisted men and commanded by white officers. The regiment was authorized by the Bureau of Colored Troops which was created by the United States War Department on May 22, 1863. The regiment engaged in the Siege of Petersburg and Appomattox Campaign and was present at the unconditional surrender of Confederate General Robert E. Lee and the Army of Northern Virginia at Appomattox Court House on April 9, 1865.
The 73rd Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 54th New York Infantry Regiment was an infantry regiment in the Union Army during the American Civil War.
The 27th Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
German Empire 
United States (Union)
United States Army (Union Army)