![](http://www.strategypage.com/gallery/images/new_improved_u2.jpg)
The improved U-2S Dragon Lady, Block 20, aircraft taxis to the runway at Osan Air Base, South Korea, followed by a high-performance chase car. Osan AB was the last forward operating location to receive the new Block 20 aircraft. (U.S. Air Force photo/Staff Sgt. Andrea Knudson)
Posted: 06/01/2006