ELLSWORTH AIR FORCE BASE, S.D. -- Renise Alexander (right), daughter of Col. Renita Alexander, former 28th Mission Support Group commander, pins the colonel’s retirement pin here, Aug. 4. While stationed at Ellsworth, Colonel Alexander was responsible for seven different squadrons involving nearly 8,000 military and civilian members and their families. (U.S. Air Force photo/Senior Airman Kasey Zickmund)