The 3918th Strategic Wing (3918th SW) is an inactive United States Air Force unit, discontinued on 31 March 1965.The 3918th SW was a ground service support element for the Strategic Air Command 7th Air Division (AD), stationed at RAF Upper Heyford, Oxfordshire, in the United Kingdom. It was upgraded to wing status on 1 February 1964 and discontinued on 31 March 1965.