This picture does a good job of conveying what a rugged region our troops have to cover and how difficult it might be to seek out the enemy among so many cave-riddled peaks and valleys.

Spencer Platt/Getty Images
Soldiers with the U.S Army 1-6 Field Artillery division head towards a village to investigate Taliban activity in the area February 21, 2009 in Nuristan Province, Afghanistan. As the security situation continues to challenge coalition forces, President Obama is sending an additional 17,000 American troops to Afghanistan this spring and summer, adding to the 36,000 Americans currently in Afghanistan.