The 97th Operations Group (97 OG) is a United States Air Force unit assigned to the 97th Air Mobility Wing of Air Education and Training Command . It is stationed at Altus Air Force Base, Oklahoma.The group was first activated during World War II as the 97th Bombardment Group. It was the first Boeing B-17 Flying Fortress bombardment group to fly a mission from the United Kingdom against a European target, the marshalling yards at Sotteville-lès-Rouen in France.