Congress originally created the 1st U.S. Dragoons in 1833. The 2nd U.S. Dragoons, and the U.S. Mounted Riflemen followed in 1836 and 1846 respectively. Prior to "1833 mounted troops were raised (in 1808 and 1812) as emergencies presented themselves and were disbanded as soon as these had passed." The newly designated forces were often influenced after American cavalry units employed during the American Revolutionary War. The traditions of the U.S. Cavalry originated with the horse-mounted force which played an important role in extending United States governance into the Western United States, especially after the American Civil War (1861–1865), with the need to cover vast ranges of territory between scattered isolated forts and outposts of the minimal resources given to the stretched thin U.S. Army.