sentences:  On 26 July 1956, a Boeing B-47 Stratojet under the division's operational control was practicing touch-and-go landings at RAF Lakenheath crashed into a nuclear weapons storage facility causing damage to several weapons stored at the site.It participated in alerts, exercises, operational readiness inspections, evaluations, and intensive training programs to provide an advanced combat ready force.It also assumed responsibility for air base construction and improvement, which included building complexes to accommodate bombers, fighters, and special functions such as communications, weapons storage, aircraft parts, and navigational aids.