The 29th Training Systems Squadron is an active United States Air Force unit. It is assigned to the 753d Test and Evaluation Group, at Eglin Air Force Base, Florida. The squadron is one of the oldest in the United States Air Force, its origins dating to March 1918, being organized at Brooks Field, Texas, as a training squadron during World War I. The squadron saw combat during World War II, and became part of the Air Defense Command during the Cold War.