Col. Miro Kurka, outgoing U.S. Army Corps of Engineers Afghanistan Engineer District commander, speaks at the AED change of command ceremony, July 7, while Maj. Gen. Robert Cone (right), Combined Security Transition Command - Afghanistan commanding general, Col. Thomas O'Donovan (right center), incoming U.S. Army Corps of Engineers Afghanistan Engineer District commander, and AED Command Sgt. Maj. Gary Winkleblack look on at the AED in Kabul, Afghanistan.