Air Education and Training Command Studies and Analysis Squadron
The Air Education and Training Command Studies and Analysis Squadron is a unit of the United States Air Force stationed at Randolph Air Force Base, Texas, where it reports directly to the headquarters of Air Education and Training Command, evaluating training programs and systems. The squadron's first two predecessor units served in combat during World War II. The 21st Bombardment Squadron (Heavy) flew Consolidated B-24 Liberators in the Aleutian Campaign, where it participated in one of the earliest direct attacks against Japan.
Source: Wikipedia — Air Education and Training Command Studies and Analysis Squadron (CC BY-SA 4.0)