In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
Q: Passage: The Battle of Little Robe Creek (Also known as the Battle of Antelope Hills) was a battle fought between the Comanches' allies of the Kiowa and the Apache against the Texas Rangers with their allies the Tonkawa, Caddo, Anadarko, Waco, Shawnee, Delaware and Tahaucano. The Battle was the first battle in which the Texas Rangers were able to have enter the Comanche land of Comancheria. The United States rallied a force of 100 Texas Rangers and 113 allies where the Comanches rallied a force between the range of 200-600. In the battle there were three decisive battles between the Comanches and the Texas Rangers. The first began in the morning of May 12 when the Texas Rangers led by General Ford attacked a Comanche camp, the Comanches were not ready for such attack and a massacre occurred. The second battle began when the Texas Rangers attempted to do the same to the next Comanche camp only to be met by resistance from the Comanche's who saw the approach of the Texas Rangers. The Comanches at this point were able to act in defense but there was still a significant lose of life for the Comanches. It was not until the third and final battle of Little Robe creek where the Comanche warriors were able to take an offensive stance against the Texas Rangers. However, the end result of the three battles was costly to the Comanche forces: 76 were killed and over 60 were captured by the Texas Rangers. By comparison, the Texas Rangers lost two killed and only five wounded.
Link Information: The rangers were founded in 1823 when Stephen F. Austin, known as the Father of Texas, employed ten men to act as rangers to protect 600 to 700 newly settled families who arrived in Texas following the Mexican War of Independence. Answer: 1823
A:
What year was the US militia unit that fought in the Battle of Little Robe Creek found?