South Dakota spending, because of the proximity of many tourist attractions in the Black Hills and Ellsworth Air Force Base. The next eight largest cities in the state, in order of descending 2010 population, are Aberdeen (26,091), Brookings (22,056), Watertown (21,482), Mitchell (15,254), Yankton (14,454), Pierre (13,646), Huron (12,592), and Vermillion (10,571). Pierre is the state capital, and Brookings and Vermillion are the locations of the state's two largest universities (South Dakota State University and University of South Dakota, respectively). With a population of about 14,000, Pierre is the second smallest state capital in the United States. Of the ten largest cities
South Dakota State Guard Guard was in federal service. Prior to the creation of the modern National Guard of the United States, the United States maintained a relatively small professional military and relied on state militias to augment the federal military in times of war. In 1901, the South Dakota Legislature designated the South Dakota State Guard as the organized militia of South Dakota, and required that the state maintain a certain minimum strength of cavalry, artillery, and infantry units. After the passage of the Militia Act of 1903, state militia units were reorganized into National Guard units and operated as a reserve component