12th Division (United States)

The 12th Division was a division of the United States Army that existed during World War I, but was demobilized without seeing combat overseas. It was constituted in the National Army on August 25, 1917, and formally activated at Camp Devens, Massachusetts, in September 1917. The division was composed primarily of draftees from New England.

The division's planned composition included the 23rd Infantry Brigade (comprising the 23rd and 24th Infantry Regiments) and the 24th Infantry Brigade (comprising the 25th and 26th Infantry Regiments), as well as supporting artillery, engineer, and medical units.

Due to the end of World War I on November 11, 1918, the 12th Division did not deploy to Europe. Instead, it was demobilized in January 1919 at Camp Devens. The division's brief existence meant that it did not acquire a significant combat record or enduring legacy beyond its role in the wartime mobilization efforts. Its shoulder sleeve insignia featured a blue, white, and red design, the colors of the American flag.