The Battle of Cieneguilla (pronounced sienna-GEE-ya; English: small swamp) was an engagement of the Jicarilla War involving a group of Jicarilla Apaches, their Ute allies, and the American 1st Cavalry Regiment on March 30, 1854 near what is now Pilar, New Mexico. The Santa Fe Weekly Gazette reported that the action "was one of the severest battles that ever took place between American troops and Red Indians." It was one of the first significant battles between American and Apache forces and was also part of the Ute Wars, in which Ute warriors attempted to resist Westward expansion in the Four Corners region.