The Nueces Strip or Wild Horse Desert is the area of

South Texas South Texas is a region of the U.S. state of Texas that lies roughly south of—and includes—San Antonio. The southern and western boundary is the Rio Grande, and to the east it is the Gulf of Mexico. The population of this region is about 4.96 ...

between the

Nueces River The Nueces River is a river in the U.S. state of Texas, about long. It drains a region in central and southern Texas southeastward into the Gulf of Mexico. It is the southernmost major river in Texas northeast of the Rio Grande. ''Nueces'' ...

and the

Rio Grande The Rio Grande ( and ), known in Mexico as the Río Bravo del Norte or simply the Río Bravo, is one of the principal rivers (along with the Colorado River) in the southwestern United States and in northern Mexico. The length of the Rio G ...

. According to the narrative of Mexican missionary Juan Agustín Morfi, there were so many wild horses swarming in the Nueces Strip in 1777 "that their trails make the country, utterly uninhabited by people, look as if it were the most populated in the world". In the 1830s, the

Republic of Texas The Republic of Texas ( es, República de Tejas) was a sovereign state in North America that existed from March 2, 1836, to February 19, 1846, that bordered Mexico, the Republic of the Rio Grande in 1840 (another breakaway republic from Mex ...

claimed the Rio Grande as its southern border; Mexico claimed the Nueces River ( north of the Rio Grande). The area between the two rivers became known as the Nueces Strip. Both countries invaded it, but neither controlled it nor settled it. It was the scene of the first fighting in the

Mexican–American War The Mexican–American War, also known in the United States as the Mexican War and in Mexico as the (''United States intervention in Mexico''), was an armed conflict between the United States and Mexico from 1846 to 1848. It followed the 1 ...

in 1846. In the

Treaty of Guadalupe Hidalgo The Treaty of Guadalupe Hidalgo ( es, Tratado de Guadalupe Hidalgo), officially the Treaty of Peace, Friendship, Limits, and Settlement between the United States of America and the United Mexican States, is the peace treaty that was signed on 2 ...

, signed in 1848, Mexico ceded the Nueces Strip to the U.S. Ever since 1848 the border area has had a reputation for lawlessness and smuggling, and was a main zone of activity of the Texas Rangers. It was also used by

enslaved people Slavery and enslavement are both the state and the condition of being a slave—someone forbidden to quit one's service for an enslaver, and who is treated by the enslaver as property. Slavery typically involves slaves being made to perf ...

fleeing on the lesser-known southern route of the

Underground Railroad The Underground Railroad was a network of clandestine routes and safe houses established in the United States during the early- to mid-19th century. It was used by enslaved African Americans primarily to escape into free states and Canada. T ...

Mexican–American War

U.S. President The president of the United States (POTUS) is the head of state and head of government of the United States of America. The president directs the executive branch of the federal government and is the commander-in-chief of the United States ...

James K. Polk James Knox Polk (November 2, 1795 – June 15, 1849) was the 11th president of the United States, serving from 1845 to 1849. He previously was the 13th speaker of the House of Representatives (1835–1839) and ninth governor of Tennessee (183 ...

ordered General

Zachary Taylor Zachary Taylor (November 24, 1784 – July 9, 1850) was an American military leader who served as the 12th president of the United States from 1849 until his death in 1850. Taylor was a career officer in the United States Army, rising to th ...

and his forces south to the Rio Grande, entering the Nueces Strip. The U.S. claimed the land citing the 1836

Treaties of Velasco A treaty is a formal, legally binding written agreement between actors in international law. It is usually made by and between sovereign states, but can include international organizations, individuals, business entities, and other legal perso ...

. Mexico rejected the treaties and refused to negotiate; it claimed all of Texas. Taylor ignored Mexican demands to withdraw to the Nueces. He constructed a makeshift fort (later known as Fort Brown/Fort Texas) on the banks of the Rio Grande opposite the city of

Matamoros, Tamaulipas Matamoros, officially known as Heroica Matamoros, is a city in the northeastern Mexican state of Tamaulipas, and the municipal seat of the homonymous municipality. It is on the southern bank of the Rio Grande, directly across the border from Br ...

. Mexican forces under General

Mariano Arista José Mariano Arista (26 July 1802 – 7 August 1855) was a Mexican soldier and politician. He was in command of the Mexican forces at the opening battles of the Mexican American War: the Battle of Palo Alto and the Battle of Resaca de la Pal ...

prepared for war. On April 25, 1846, a 2,000-strong Mexican cavalry detachment attacked a 70-man U.S. patrol that had been sent into the contested territory north of the Rio Grande and south of the Nueces River. In the

Thornton Affair The Thornton Affair, also known as the Thornton Skirmish, Thornton's Defeat, or Rancho Carricitos was a battle in 1846 between the military forces of the United States and Mexico west upriver from Zachary Taylor's camp along the Rio Grande ...

, the Mexican cavalry routed the patrol, killing 16 American soldiers.

Notes

{{coord missing, Texas Regions of Texas Mexican–American War Republic of Texas

Mexican–American War

Further reading

Notes