Wisconsin 21st Infantry (Union)

    05 Sep 1862

    Wisconsin 21st Infantry organized at Wisconsin.

    08 Oct 1862

    Participated in the Battle of Perryville at Perryville, Kentucky.

    The Battle of Perryville
    The Battle of Perryville

    On October 7, 1862, Maj. Gen. Don Carlos Buell's Army of the Ohio, in pursuit of Gen Braxton Bragg's Army of Mississippi, approached the crossroads town of Perryville, Kentucky. Union forces skirmished with Confederates on the Springfield Pike before heavy fighting began on Peters Hill. The next day, fighting continued as a Union division advanced up the pike. After noon, a Confederate division struck the Union left flank and forced it to fall back. When more Confederates joined the fray, the Union line ma… Read More

    31 Dec 1862

    Participated in the Battle of Stones River at Murfreesboro, TN.

    The Battle of Stones River
    The Battle of Stones River

    After his October 1862 defeat at Perryville in Kentucky, Gen. Braxton Bragg withdrew his army into middle Tennessee and resupplied his men near Murfreesboro. Read More

    19 Sep 1863

    Participated in the Battle of Chickamauga at Catoosa County, Georgia; Walker County, Georgia.

    The Battle of Chickamauga
    The Battle of Chickamauga

    After the successful Tullahoma Campaign, Maj. Gen. William Rosecrans continued the Union offensive, aiming to force Gen. Braxton Bragg's Confederate army out of Chattanooga. Through a series of skillful marches towards the Confederate-held city, Rosecrans forced Bragg out of Chattanooga and into Georgia. Determined to reoccupy the city, Bragg followed the Federals north, brushing with Rosecrans' army at Davis' Cross Roads. While they marched on September 18th, his cavalry and infantry skirmished with Un… Read More

    25 May 1864

    Participated in the Battle of New Hope Church at Paulding County, Georgia.

    The Battle of New Hope Church
    The Battle of New Hope Church

    During early May 1864, Maj. Gen. William T. Sherman successfully outmaneuvered the army of Gen. Joseph E. Johnston in multiple battles in northwest Georgia. Each time, Johnston fell back to a new defensive position closer to the strategic Confederate city of Atlanta. After Johnston retreated to Allatoona Pass on May 19-20th following the battle at Adairsville, Sherman determined to move around Johnston's left flank rather than attack the strong Confederate defenses in his front. On May 23rd, Sherman set in… Read More

    27 May 1864

    Participated in the Battle of Dallas at Paulding County, Georgia.

    The Battle of Dallas
    The Battle of Dallas

    During early and mid-May 1864, Maj. Gen. William T. Sherman successfully outmaneuvered the army of Gen. Joseph E. Johnston in multiple battles in northwest Georgia. Each time, Johnston fell back to a new defensive position closer to the strategic Confederate city of Atlanta. Stopped at New Hope Church on Johnston's left on May 26th, Sherman attacked Johnston's right at Pickett's Mill on May 27th. The next day, Lt. Gen. William J. Hardee's corps probed the Union defensive line, held by Maj. Gen. John A. Log… Read More

    20 Jul 1864

    Participated in the Battle of Peachtree Creek at Fulton County, Georgia.

    The Battle of Peachtree Creek
    The Battle of Peachtree Creek

    Weary of Gen. Joseph E. Johnston's pattern of retreat through northwest Georgia in the face of Maj. Gen. William T. Sherman's advancing armies, President Jefferson Davis removed him from command of the Army of Tennessee, replacing him with Lieut. Gen. John B. Hood. On July 20th, Hood determined to take the fight to the enemy by setting upon an isolated portion of Sherman's forces in front of Atlanta. Hood's target would be the Union corps of Maj. Gens. Oliver O. Howard and Joseph Hooker from Maj. Gen. Geo… Read More

    31 Aug 1864

    Assigned to the Brigade led by .

    31 Aug 1864

    Assigned to the Division led by .

    31 Aug 1864

    Participated in the Battle of Jonesborough at Clayton County, Georgia.

    The Battle of Jonesborough
    The Battle of Jonesborough

    By late August 1865, the city of Atlanta was not yet subdued by Maj. Gen. William T. Sherman's armies. A few supply lines remained open to the city supporting the army of Lieut. Gen. John B. Hood encircled there. Union cavalry raids inflicted only superficial damage, quickly repaired by the Confederates. Sherman determined that if he could destroy the Macon & Western and Atlanta & West Point Railroads to the south the Rebel army would be forced to evacuate the city. On August 25, Union infantry beg… Read More

    19 Mar 1865

    Participated in the Battle of Bentonville at Bentonville, NC.

    The Battle of Bentonville
    The Battle of Bentonville

    After his march to the sea, Maj. Gen. William T. Sherman headed north in early 1865 to unite with Lt. Gen. Ulysses S. Grant's army in Virginia. Only Confederate Gen. Joseph Johnston's army stood between Sherman and Grant. After briefly blocking Sherman's advance at Averasboro, North Carolina on March 16, Johnston struck Maj. Gen. Henry Slocum's wing of Sherman's army near Bentonville on March 19. The Confederates ran into stiff resistance, as Slocum established a defensive position. Johnston's assaults con… Read More

    14 Jul 1865

    Wisconsin 21st Infantry mustered out at Wisconsin.