Mexican–American War

E7117

19th-century conflict war

The Mexican–American War was a mid-19th-century conflict between the United States and Mexico that resulted in significant territorial gains for the U.S., including present-day California, Arizona, New Mexico, and other southwestern lands.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (11)

Label	Occurrences
Mexican–American War canonical	316
Mexican War	1
Mexican–American War (1846–1848)	1
Mexican–American War (as U.S. Secretary of War)	1
Mexican–American War (as officer, limited service)	1
Mexican–American War (diplomatic prelude)	1
Mexican–American War aftermath	1
Mexican–American War prelude	1
U.S. declaration of war on Mexico	1
U.S. invasion of Mexico	1
United States invasion of Mexico	1

How this entity was disambiguated

This entity first appeared as the object of triple T45557 — 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: Mexican–American War
Context triple: [United States Marine Corps, engagedIn, Mexican–American War]

A. Spanish–American War
The Spanish–American War was an 1898 conflict between the United States and Spain that marked the emergence of the U.S. as a global power and led to American control over former Spanish colonies in the Caribbean and Pacific.
B. War of 1812
The War of 1812 was a military conflict between the United States and Great Britain from 1812 to 1815, marked by battles on land and sea, the burning of Washington, D.C., and a surge of American national identity.
C. American Civil War
The American Civil War was a major 19th-century conflict fought from 1861 to 1865 between the Northern Union states and the Southern Confederate states, primarily over slavery and states’ rights, that reshaped the political and social landscape of the United States.
D. Black Hawk War
The Black Hawk War was an 1832 conflict between the United States and a coalition of Native American tribes led by the Sauk leader Black Hawk, notable for involving future U.S. President Abraham Lincoln in his early military service.
E. Spanish conquest of the Aztec Empire
The Spanish conquest of the Aztec Empire was the early 16th-century military and political campaign led by Hernán Cortés that toppled the powerful Aztec civilization and brought central Mexico under Spanish colonial rule.
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: Mexican–American War
Target entity description: The Mexican–American War was a mid-19th-century conflict between the United States and Mexico that resulted in significant territorial gains for the U.S., including present-day California, Arizona, New Mexico, and other southwestern lands.

A. Spanish–American War
The Spanish–American War was an 1898 conflict between the United States and Spain that marked the emergence of the U.S. as a global power and led to American control over former Spanish colonies in the Caribbean and Pacific.
B. War of 1812
The War of 1812 was a military conflict between the United States and Great Britain from 1812 to 1815, marked by battles on land and sea, the burning of Washington, D.C., and a surge of American national identity.
C. American Civil War
The American Civil War was a major 19th-century conflict fought from 1861 to 1865 between the Northern Union states and the Southern Confederate states, primarily over slavery and states’ rights, that reshaped the political and social landscape of the United States.
D. Black Hawk War
The Black Hawk War was an 1832 conflict between the United States and a coalition of Native American tribes led by the Sauk leader Black Hawk, notable for involving future U.S. President Abraham Lincoln in his early military service.
E. Spanish conquest of the Aztec Empire
The Spanish conquest of the Aztec Empire was the early 16th-century military and political campaign led by Hernán Cortés that toppled the powerful Aztec civilization and brought central Mexico under Spanish colonial rule.
F. None of above. chosen

Statements (54)

Predicate	Object
instanceOf	19th-century conflict ⓘ war ⓘ
aftermath	intensified U.S. sectional conflict over slavery expansion ⓘ significant Mexican territorial loss ⓘ strengthening of U.S. military leaders who later served in the American Civil War ⓘ
belligerent	Mexico ⓘ United States of America ⓘ surface form: United States
capitalCaptured	Mexico City ⓘ
cause	U.S. expansionist ideology of Manifest Destiny ⓘ annexation of Texas by the United States ⓘ dispute over the Texas–Mexico border ⓘ
conflictBetween	Mexico ⓘ United States of America ⓘ surface form: United States
endDate	1848-02-02 ⓘ
legislativeAuthorization	U.S. Congress declaration of war on Mexico ⓘ
location	California, United States ⓘ surface form: California Mexico ⓘ New Mexico Territory ⓘ North America ⓘ Texas ⓘ present-day southwestern United States ⓘ
majorBattle	Battle of Buena Vista ⓘ Battle of Cerro Gordo ⓘ Battle of Chapultepec ⓘ Battle of Monterrey ⓘ Battle of Palo Alto ⓘ Battle of Resaca de la Palma ⓘ Siege of Veracruz ⓘ
MexicanCommander	Antonio López de Santa Anna ⓘ Gabriel Valencia ⓘ Mariano Arista ⓘ
MexicanPresidentDuringWar	Antonio López de Santa Anna ⓘ
predecessorConflict	Texas Revolution ⓘ
result	decisive United States victory ⓘ
startDate	1846-04-25 ⓘ
territorialChange	Treaty of Guadalupe Hidalgo ⓘ surface form: Mexican Cession to the United States U.S. acquisition of most of present-day Arizona ⓘ U.S. acquisition of most of present-day New Mexico ⓘ U.S. acquisition of parts of present-day Colorado ⓘ U.S. acquisition of parts of present-day Wyoming ⓘ U.S. acquisition of present-day California ⓘ U.S. acquisition of present-day Nevada ⓘ U.S. acquisition of present-day Utah ⓘ
treaty	Treaty of Guadalupe Hidalgo ⓘ
treatySignedAt	Treaty of Guadalupe Hidalgo ⓘ surface form: Guadalupe Hidalgo
treatySignedOn	1848-02-02 ⓘ
U.S.Commander	Stephen W. Kearny ⓘ Winfield Scott ⓘ Zachary Taylor ⓘ
U.S.MilitaryTheater	California Campaign ⓘ Central Mexico ⓘ New Mexico Campaign ⓘ Northern Mexico ⓘ
U.S.PresidentDuringWar	James K. Polk ⓘ

How these facts were elicited

Referenced by (326)

Full triples — surface form annotated when it differs from this entity's canonical label.

Stephen W. Kearny → conflict → Mexican–American War ⓘ

Mariano Arista → participantIn → Mexican–American War ⓘ

Battle of Monterrey → conflict → Mexican–American War ⓘ

Battle of Monterrey → partOf → Mexican–American War ⓘ

Siege of Veracruz → conflictOf → Mexican–American War ⓘ

Siege of Veracruz → partOf → Mexican–American War ⓘ

New Mexico Campaign → conflict → Mexican–American War ⓘ

New Mexico Campaign → partOf → Mexican–American War ⓘ

Little Mac → servedIn → Mexican–American War ⓘ

subject surface form: George B. McClellan

Battle of Chapultepec → conflict → Mexican–American War ⓘ

Battle of Chapultepec → partOf → Mexican–American War ⓘ

Thomas → servedIn → Mexican–American War ⓘ

subject surface form: Thomas Jonathan Jackson

Gabriel Valencia → participatedIn → Mexican–American War ⓘ

Gabriel Valencia → conflict → Mexican–American War ⓘ

Battle of Resaca de la Palma → partOf → Mexican–American War ⓘ

Battle of Resaca de la Palma → conflict → Mexican–American War ⓘ

Brigadier General Nathaniel Lyon → battles → Mexican–American War ⓘ

subject surface form: Nathaniel Lyon

1848 United States presidential election → tookPlaceDuring → Mexican–American War ⓘ

this entity surface form: Mexican–American War aftermath

Port of Veracruz → wasKeyPortDuring → Mexican–American War ⓘ

James K. Polk → militaryConflictOversaw → Mexican–American War ⓘ

Henry W. Halleck → servedIn → Mexican–American War ⓘ

Zachary Taylor → conflict → Mexican–American War ⓘ

Revenue Marine Service → conflictParticipation → Mexican–American War ⓘ

USS Portsmouth → conflictParticipated → Mexican–American War ⓘ

Personal Memoirs of U. S. Grant → coversEvent → Mexican–American War ⓘ

Bear Flag Revolt → conflictOf → Mexican–American War ⓘ

Californian campaign of the Mexican–American War → conflict → Mexican–American War ⓘ

Californian campaign of the Mexican–American War → partOf → Mexican–American War ⓘ

Ethan Allen Hitchcock → participatedIn → Mexican–American War ⓘ

Ethan Allen Hitchcock → conflict → Mexican–American War ⓘ

Mexico City National Cemetery → commemoratesConflict → Mexican–American War ⓘ

Rear Admiral Samuel Francis Du Pont → militaryConflict → Mexican–American War ⓘ

subject surface form: Samuel Francis Du Pont

Franklin Pierce → conflict → Mexican–American War ⓘ

Joseph Lane → conflict → Mexican–American War ⓘ

William Jenkins Worth → conflict → Mexican–American War ⓘ

Lewis Armistead → conflict → Mexican–American War ⓘ

George G. Meade → conflict → Mexican–American War ⓘ

Raphael Semmes → conflict → Mexican–American War ⓘ

John C. Pemberton → conflict → Mexican–American War ⓘ

Centralist Republic of Mexico → involvedInConflict → Mexican–American War ⓘ

U.S. 9th Infantry Regiment → conflictParticipated → Mexican–American War ⓘ

Major General Jubal A. Early → servedIn → Mexican–American War ⓘ

subject surface form: Jubal A. Early

John A. Quitman → conflict → Mexican–American War ⓘ

Resistance to Civil Government (Civil Disobedience) → criticizes → Mexican–American War ⓘ

subject surface form: Resistance to Civil Government

Campo de Cahuenga (nearby) → conflict → Mexican–American War ⓘ

subject surface form: Campo de Cahuenga

Joseph E. Johnston → militaryConflict → Mexican–American War ⓘ

Albert Sidney Johnston → participatedIn → Mexican–American War ⓘ

Kirby Smith → conflict → Mexican–American War ⓘ

James Pinckney Henderson → conflict → Mexican–American War ⓘ

Sylvester Churchill → hasPartIn → Mexican–American War ⓘ

All labels observed (11)

How this entity was disambiguated Show

Statements (54)

How these facts were elicited Show

Referenced by (326)

How this entity was disambiguated

How these facts were elicited