1849–50 in Arkansas and the neighboring Indian Territory, then replaced the 7th Infantry in Texas. In 1851 they were stationed mainly along the upper Brazos River; by 1854 they had moved to Fort McIntosh outside the city of Laredo. In early 1857 the 5th moved to south Florida, where they spent several months skirmishing with Seminoles in the area around Fort Myers. The 5th left Florida in June for Fort Laramie in modern-day Wyoming, where they took part in the Buchanan administration's expedition against the Mormons. The regiment stayed at Camp Floyd (later Fort Crittenden) in the Great Salt Lake valley until the autumn of 1860, when it moved to New Mexico for operations against the Navajos. Civil War The 5th Infantry spent the Civil War in the territory of New Mexico. The regiment was ordered to concentrate at Albuquerque in the spring of 1861 for a move east, but the department commander persuaded Washington to leave the 5th on the frontier. In late 1861, French inventor J.-A. de Brame had two 4-pounder revolver guns of his design built and offered them to the regiment. One surviving gun is now on display at the In early 1862 a Confederate force from Texas invaded New Mexico. Four companies of the 5th formed the Union rear guard in the Confederate victory at Valverde on 21 February, after which the Confederates occupied Albuquerque and Santa Fe. Two other companies of the 5th captured a field piece at the Battle of Glorieta Pass on 28 March, the beginning of the end for the Confederate forces. The 5th also fought in the action at Peralta on 15 April where the enemy lost a large part of their supply train. The Confederates ultimately withdrew to San Antonio, and the 5th spent the rest of the war on frontier duty, watching for another Confederate incursion, which never came. On 1 June 1863 John F. Reynolds officially became colonel of the 5th; however, he was on detached service as a Major General of Volunteers, commanding a corps of the Army of the Potomac. He was killed a month later on the first day of the Battle of Gettysburg. His replacement as commander of the 5th was another volunteer general, Daniel Butterfield, the composer of the bugle call "Taps". Butterfield, also wounded at Gettysburg, did not join the regiment during the war. American Indian Wars When the Civil War