sentences:  The number of B-47 wings capable of sending aircraft to Reflex operations at the division's bases began to decline after 1958.The replacement of the medium bomber by the heavy bomber and the intercontinental ballistic missile in the SAC inventory continued into the early 1960s and this removed the need for SAC bases in England, leading to the inactivation of the division in June 1965.From 1978, the division was activated in Europe to provide command and control for SAC units assigned to USAFE, primarily air refueling and reconnaissance organizations, but also ground support units such as the 3920th Strategic Wing.