Col. Kevin Kennedy, 28th Bomb Wing commander, welcomes Lt. Gen. Tod D. Wolters, 12th Air Force (Air Forces Southern) commander, as he arrives at Ellsworth Air Force Base, S.D., Dec. 3, 2013. Wolters and Chief Master Sgt. Calvin Williams, 12th Air Force (Air Forces Southern) command chief, visited Ellsworth Dec. 3 and 4 and to discuss current issues and challenges the Air Force is facing with Ellsworth Airmen and to thank them for their dedicated service. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)