Imperial Hubris is a polemic, and not an altogether comfortable one, but one that seems intent on skewering all sides of the debate and forcing as many sacred cows as possible to be tossed out.
With the advent of the war against Al Quada and the Taliban in Afghanistan, a good background primer on the region is an absolute necessity. I heartily recommend Peter Hopkirk's The Great Game: The Struggle for Empire in Central Asia, and Tournament of Shadows: The Great Game and the Race for Empire in Central Asia by Karl Ernest Meyer. These two works will give you the historical background. Then go and read some Kipling for the flavor...
For a more contemporary look at Afghanistan, the rise of Al Quada and Bin Ladin, crack open Steve Coll's superlative Pulitzer-Prize winning Ghost Wars: The Secret History of the CIA, Afghanistan, and Bin Laden, from the Soviet Invasion to September 10, 2001 (detailed review can be found here).
I also recommend Charlie Wilson's War by George Crile (also reviewed here). Both books are characterized by strong research, excellent writing and a highly involving look at the last thirty-years of Afghan history and its bitter aftermath.
The war against the Taliban in Afghanistan was an extraordinary one, by any definition, made moreso by the relative dearth of U.S. forces on the ground for much of the conflict. U.S. Special Forces played a key role in the Northern Alliance's overthrow of the Taliban regime and the relatively swift victory that ensued, bringing their battlefield expertise, communications, language, organizational skills, and their innovative, evolving warfare techniques to bear.
Linda Robinson's Masters of Chaos: The Secret History of the Special Forces takes a
careful look at the activities of the U.S. Special Forces in both Afghanistan and Iraq, although the book is in actuality an overview of their activities across other operational theaters such as Panama, Kosovo, Somolia, and more.
Robinson pulls together a solid account of the Special Forces, weaving together interviews with more than 30 special forces operators and delving into and contrasting the attitudes and approaches found in the Special Forces with the mainstream military forces.