The 388th Operations Group (388 OG) is the flying component of the 388th Fighter Wing, assigned to the Air Combat Command Twelfth Air Force. The group is stationed at Hill Air Force Base, Utah.During World War II, its predecessor unit, the 388th Bombardment Group (Heavy) was an Eighth Air Force B-17 Flying Fortress unit in England, stationed at RAF Knettishall (Station 136).