The First Battle of Mesilla was fought on July 25, 1861, at
Mesilla in
New Mexico Territory
The Territory of New Mexico was an organized incorporated territory of the United States from September 9, 1850, until January 6, 1912. It was created from the U.S. provisional government of New Mexico, as a result of '' Nuevo México'' becomi ...
, in present-day
Doña Ana County, New Mexico.
It was an engagement between
Confederate
A confederation (also known as a confederacy or league) is a political union of sovereign states united for purposes of common action. Usually created by a treaty, confederations of states tend to be established for dealing with critical issu ...
and
Union forces during the
American Civil War
The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...
. The battle resulted in a Confederate victory and led directly to the establishing of a
Confederate Arizona Territory, consisting of the southern portion of the
New Mexico Territory
The Territory of New Mexico was an organized incorporated territory of the United States from September 9, 1850, until January 6, 1912. It was created from the U.S. provisional government of New Mexico, as a result of '' Nuevo México'' becomi ...
. The victory paved the way for the Confederate
New Mexico Campaign the following year.
Background
Following the secession of Texas in February 1861 and its joining the Confederacy, a battalion of the
2nd Texas Mounted Rifles under Lieutenant Colonel
John R. Baylor was sent to occupy the series of forts along the western Texas frontier which had been abandoned by the Union Army. Baylor's orders from the Department of Texas commander, Colonel
Earl Van Dorn
Earl Van Dorn (September 17, 1820May 7, 1863) was an American Major General who started his military career as a United States Army officer and became famous for successfully leading two defenses of a Native American settlement from the Comanch ...
, allowed him to advance into New Mexico in order to attack the Union forts along the
Rio Grande
The Rio Grande ( or ) in the United States or the Río Bravo (del Norte) in Mexico (), also known as Tó Ba'áadi in Navajo language, Navajo, is one of the principal rivers (along with the Colorado River) in the Southwestern United States a ...
if he thought the situation called for such measures. Convinced that the Union force at
Fort Fillmore would soon attack, Baylor decided to take the initiative and launch an attack of his own.
Leaving during the night of July 23, Baylor arrived at Fort Fillmore the next night, preparing to launch a surprise attack the next morning. However, a Confederate deserter informed the fort's commander, Major
Isaac Lynde, of the plans. The next day, Baylor led his battalion across the Rio Grande into
Mesilla, which sat at the crossroads of the two most traveled trails in the Southwest, the north-south ''
El Camino Real de Tierra Adentro'' ("the Royal Road of the Interior Land") and the east-west Butterfield overland mail route. Baylor and his men were greeted with the cheers of the townspeople, who favored the Confederacy. A company of Arizona Confederates joined Baylor here, and were convinced to muster into the Confederate Army.
On July 25, leaving a small force behind to guard the fort, Lynde led 380 Regulars to the village to drive out Baylor.
Battle

Lynde approached the town with his command and demanded Baylor's surrender. When Baylor refused, Lynde deployed his men into a skirmish line and opened fire with his mountain howitzers. The infantry was ordered to advance but heavy sand and corn fields interfered with this attack. Lynde then ordered his cavalry, three companies of the
Regiment of Mounted Rifles, to charge Baylor's men.
The Confederates shot many of the Union soldiers during this time, which disorganized the attack. The Union assault was repulsed, and both sides began skirmishing at long range. Lynde reformed his command but decided to retreat back to the fort, with the Confederates troops and armed Arizona citizens in pursuit. Lynde lost a disputed three to thirteen men killed and two officers and four men wounded, while Baylor lost a disputed two dead and seven seriously wounded with twenty horses killed.
Aftermath
At sunset the next day, Baylor ordered his artillery and more cavalry to reinforce him, while the rest of his command moved into position to attack the fort the next day. During the same night, the Confederates captured 85 of the fort's horses, which formed most of the fort's transportation. Fearing an attack the next day, Lynde abandoned Fort Fillmore after destroying the ammunition and supplies in the citadel. He retreated northeast towards
Fort Stanton across the dry
Organ Mountains
The Organ Mountains (also known as La Sierra de los Órganos) are a rugged mountain range in southern New Mexico in the Southwestern United States. Organ Mountains–Desert Peaks National Monument was declared a national monument on May 21, 2014 ...
via
San Augustin Pass. Many Union troops apparently had filled their canteens with the fort's medicinal whiskey instead of water, hardly wise for a summertime march across desert country.

During the pursuit the following day, the Confederates were able to capture dozens of straggling Federals. Lynde's dehydrated command, reduced to 100 men by this time, was overtaken by the Confederates, some of whom used a pass (later known as Baylor Pass) to intercept them. They were forced to surrender at
San Augustine Springs on July 27. The prisoners were paroled, and Baylor concentrated his battalion at the fort. He was able to refit his command with the captured Springfield rifles and other captured equipment.
[Nelson (2020) pp. 8-12]
The Confederate victory at Mesilla actualized local overtures towards secession, which had been ratified by two conventions in March 1861. On August 1 Baylor declared the establishment of an organized
Confederate Arizona Territory, consisting of the portion of the
New Mexico Territory
The Territory of New Mexico was an organized incorporated territory of the United States from September 9, 1850, until January 6, 1912. It was created from the U.S. provisional government of New Mexico, as a result of '' Nuevo México'' becomi ...
south of the
34th parallel north
Following are circles of latitude between the 30th parallel north and the 35th parallel north:
31st parallel north
The 31st parallel north is a circle of latitude that is 31 degrees north of the Earth's equatorial plane. It crosses Africa, ...
. Baylor installed himself as the new territory's military governor, and declared martial law. Baylor's success at Mesilla led to
Henry Hopkins Sibley's ambitious
New Mexico Campaign the following February.
On 25 November 1861 Major Lynde was, by direction of the President of the United States,
Abraham Lincoln
Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th president of the United States, serving from 1861 until Assassination of Abraham Lincoln, his assassination in 1865. He led the United States through the American Civil War ...
, dropped from the Army rolls for ''"abandoning his post — Fort Fillmore, N. Mex. — on the 27th of July, 1861, and subsequently surrendering his command to an inferior force of insurgents"''.
See also
*
Apache Wars
The Apache Wars were a series of armed conflicts between the United States Army and various Apache tribal confederations fought in the Southwestern United States, southwest between 1849 and 1886, though minor hostilities continued until as l ...
*
Second Battle of Mesilla
References
Notes
Bibliography
* D'Hamel, Enrique B. ''The Adventures of a Tenderfoot: History of 2nd Regt. Mounted Rifles and Co. G, 33 Regt. and Capt Coopwood's Spy Co. and 2nd Texas in Texas and New Mexico.'' New Mexico: Morrison, 1914.
* Frazier, Donald S. ''Blood & Treasure: Confederate Empire in the Southwest.'' College Station, Texas: Texas A&M University Press, 1995.
* Hall, Martin Hardwick. ''Sibley's New Mexico Campaign.'' Austin: University of Texas Press, 1960. (Reissued: Albuquerque: University of New Mexico Press, 2000.)
* Nelson, Megan Kate (2020) ''The Three-Cornered War'' New York: Scribner. pp. 6-12
External links
*
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Mesilla I
1861 in New Mexico Territory
Mesilla I
Mesilla I
History of Doña Ana County, New Mexico
Mesilla I
New Mexico Territory
July 1861