The 369th Infantry Regiment was constituted 2 June 1913 in the New York Army National Guard as the 15th New York Infantry Regiment. It was organized on 29 June 1916 at New York City. It was mustered into Federal service on 25 July 1917 at Camp Whitman, New York. It was drafted into Federal service 5 August 1917. The regiment trained in the New York area, performed guard duty at various locations in New York. They trained more intensely at Camp Wadsworth in Spartanburg, South Carolina, where they experienced significant racism from the local communities and from other units.