The 113th Air Support Operations Squadron is a unit of the Indiana Air National Guard 181st Intelligence Wing located at Terre Haute Air National Guard Base (Hulman Field), Indiana. The squadron is a descendant organization of the World War I 113th Aero Squadron, established on 26 August 1917. It was reformed on 1 August 1921, as the 113th Observation Squadron, and is one of the 29 original National Guard Observation Squadrons of the United States Army National Guard formed before World War II.