First Battle of Mesilla

First Battle of Mesilla
	Part of the Trans-Mississippi Theater of the; American Civil War
	; Mesilla in 1854
Date	July 25, 1861
Location	Mesilla, New Mexico Territory (USA), Arizona Territory (CSA); Present Day: Mesilla, New Mexico
Result	Confederate victory
Belligerents
Confederate States	United States
Commanders and leaders
John Baylor	Isaac Lynde
Strength
~300,; cavalry,; infantry,; militia	380,; cavalry,; infantry,; 4 artillery pieces
Casualties and losses
2 killed,; 7 wounded (disputed)	3–13 killed,; 6 wounded (disputed)

The First Battle of Mesilla was fought on July 25, 1861, at Mesilla in New Mexico Territory, in present-day Doña Ana County, New Mexico.

It was an engagement between Confederate and Union forces during the American Civil War. 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 victory paved the way for the Confederate New Mexico Campaign the following year.