ARTICLE: "Pakistanis Mired In Brutal Battle To Oust Taliban: A Network of Tunnels; Army, in Largest Drive Since 2001, Tries to Retake Vital Area," by Jane Perlez and Pir Zubair Shah, New York Times, 11 November 2008.

Sounds like trying to clear out Geronimo and the Apache, spliced with the networking tunnels of the Viet Cong.

No easy stuff.