The Republic of Texas Army was the military force of the Republic of Texas, which existed from 1836 to 1845. Formed after Texas gained independence from Mexico, the army played a crucial role in defending the new nation against external threats and internal conflicts. Key battles, such as the Battle of San Jacinto, showcased the army's determination and strategic capabilities. The army was composed of volunteers and regular soldiers, with notable leaders like Sam Houston and Stephen F. Austin. Despite facing challenges like limited resources and training, the Republic of Texas Army laid the groundwork for the future military of the state after Texas joined the United States.