Cavalry Corps, Army of the Potomac

E678846

cavalry corps military unit

The Cavalry Corps, Army of the Potomac was the primary mounted arm of the Union’s principal Eastern army during the American Civil War, responsible for reconnaissance, screening, raiding, and cavalry combat in major campaigns such as Gettysburg and the Overland Campaign.

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All labels observed (6)

Label	Occurrences
Cavalry Corps, Army of the Potomac canonical	4
1st Division, Cavalry Corps, Army of the Potomac	1
Cavalry Corps (Army of the Potomac)	1
Reserve Brigade of the Cavalry Corps, Army of the Potomac	1
Reserve Brigade, 1st Division, Cavalry Corps, Army of the Potomac	1
Union Army of the Potomac cavalry	1

How this entity was disambiguated

This entity first appeared as the object of triple T7632871 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Cavalry Corps, Army of the Potomac
Context triple: [1st Massachusetts Cavalry, partOf, Cavalry Corps, Army of the Potomac]

A. III Corps, Army of the Potomac
III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
B. I Corps (Union Army of the Potomac)
I Corps was a major Union Army formation in the American Civil War, noted for its prominent role in key battles such as Gettysburg.
C. 2nd Cavalry Group
The 2nd Cavalry Group was a U.S. Army mechanized cavalry unit in World War II known for reconnaissance, screening, and security operations in support of major armored and infantry formations.
D. French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
E. United States Cavalry
The United States Cavalry was a historic mounted combat branch of the U.S. Army that played a key role in 19th- and early 20th-century American military campaigns, including the Indian Wars, the Civil War, and the Spanish–American War.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Cavalry Corps, Army of the Potomac
Target entity description: The Cavalry Corps, Army of the Potomac was the primary mounted arm of the Union’s principal Eastern army during the American Civil War, responsible for reconnaissance, screening, raiding, and cavalry combat in major campaigns such as Gettysburg and the Overland Campaign.

A. III Corps, Army of the Potomac
III Corps, Army of the Potomac was a major Union infantry corps in the American Civil War, noted for its hard fighting and heavy losses in key battles such as Gettysburg.
B. I Corps (Union Army of the Potomac)
I Corps was a major Union Army formation in the American Civil War, noted for its prominent role in key battles such as Gettysburg.
C. 2nd Cavalry Group
The 2nd Cavalry Group was a U.S. Army mechanized cavalry unit in World War II known for reconnaissance, screening, and security operations in support of major armored and infantry formations.
D. French III Corps
The French III Corps was a major field formation of Napoleon’s army that played a significant role in the Waterloo campaign of 1815.
E. United States Cavalry
The United States Cavalry was a historic mounted combat branch of the U.S. Army that played a key role in 19th- and early 20th-century American military campaigns, including the Indian Wars, the Civil War, and the Spanish–American War.
F. None of above. chosen

Statements (44)

Predicate	Object
instanceOf	cavalry corps ⓘ military unit ⓘ
allegiance	Union ⓘ
branch	Union Army ⓘ
conflict	American Civil War ⓘ
country	United States of America ⓘ
disbandedIn	1865 ⓘ
engagedIn	Appomattox Campaign ⓘ Battle of Brandy Station ⓘ Battle of Chancellorsville ⓘ Battle of Gettysburg ⓘ Battle of Spotsylvania Court House ⓘ Battle of Yellow Tavern ⓘ Battle of the Wilderness ⓘ Gettysburg Campaign ⓘ Overland Campaign ⓘ Siege of Petersburg ⓘ
formedIn	1863 ⓘ
garrison	Army of the Potomac field armies in Virginia and Maryland ⓘ
historicalEra	19th century ⓘ
languageOfCommand	English ⓘ
notableCommander	Alfred Pleasonton ⓘ David McMurtrie Gregg ⓘ George Stoneman ⓘ Philip Sheridan ⓘ
notableEngagement	Sheridan’s 1864 cavalry raids in the Overland Campaign ⓘ cavalry actions on the flanks at the Battle of Gettysburg ⓘ
notableFor	development of effective Union cavalry tactics in the Eastern Theater ⓘ large-scale cavalry engagements such as Brandy Station ⓘ
opposedBy	Cavalry Corps, Army of Northern Virginia ⓘ linked to: Army of Northern Virginia cavalry corps
partOf	Army of the Potomac ⓘ
primaryFunction	conduct raids against Confederate forces ⓘ engage Confederate cavalry ⓘ provide reconnaissance for the Army of the Potomac ⓘ screen movements of the Army of the Potomac ⓘ
region	Eastern United States ⓘ
role	cavalry ⓘ mounted combat ⓘ raiding ⓘ reconnaissance ⓘ screening ⓘ
subordinateTo	headquarters of the Army of the Potomac ⓘ
theaterOfOperations	Eastern Theater of the American Civil War ⓘ
typeOfUnit	mounted troops ⓘ

How these facts were elicited