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Military units and formations disestablished in 1865

  • Army of the Shenandoah (Confederate)The Confederate Army of the Shenandoah was born at Harpers Ferry in the spring of 1861, a makeshift force assembled from militia companies and volunteers…
  • Army of the PeninsulaThe Army of the Peninsula began with a single colonel and a stretch of Virginia coast that could not be surrendered. John B.
  • Army of West MississippiThe Army of West Mississippi existed for fewer than four months, yet in that short window it fought two battles that helped seal the fate of one of the…
  • Army of the CumberlandThe Army of the Cumberland was one of the Union's principal fighting forces in the Western Theater of the American Civil War.
  • Army of the PotomacThe Army of the Potomac was born out of disaster. In the summer of 1861, a raw Union force marched out of Washington, D.C., under Brigadier General Irvin…
  • Army of TennesseeThe Army of Tennessee was the Confederacy's main fighting force in the Western Theater of the American Civil War. It formed in Tennessee in late 1862 and…
  • First Corps, Army of Northern VirginiaThe First Corps, Army of Northern Virginia bore a simpler name among those who fought under it: Longstreet's Corps. For most of the Civil War, that name…
  • Quantrill's RaidersQuantrill's Raiders, led by William Quantrill, attacked Lawrence, Kansas in August 1863 and killed more than 180 civilians.
  • Army of Northern VirginiaThe Army of Northern Virginia entered the 17th of September 1862 with fewer than 40,000 soldiers on the field. That date would become the bloodiest single…
  • Army of the TennesseeThe Army of the Tennessee took its name from a river, and even that name took months to settle on. A 2005 study calls this Union force present at "most of…
  • Confederate States ArmyThe Confederate States Army came into existence on the 28th of February 1861, when a provisional congress authorized a volunteer force and handed command…
  • Army of the GulfThe Army of the Gulf was born from a single dramatic event: Admiral David G. Farragut's capture of New Orleans in 1862. That seizure of the South's largest…
  • Trans-Mississippi DepartmentThe Trans-Mississippi Department was the last Confederate territorial command to surrender to United States forces at the end of the American Civil War.
  • Stonewall BrigadeThe Stonewall Brigade earned its name on a single afternoon in July 1861, and would carry it through three more years of some of the bloodiest fighting of…
  • Missouri State GuardThe Missouri State Guard was born on the 11th of May 1861, not in a battlefield but in a legislative chamber, when the Missouri General Assembly passed what…
  • United States Colored TroopsThe United States Colored Troops stood at one of the defining crossroads of American history. By the time the Civil War ended in 1865, 175 regiments of USCT…