ZERAK, AFGHANISTAN - JANUARY 22:  Soldiers with the US Army Able Company, 3-509 Infantry Battalion head for a mountain to search for enemy fighters following an afternoon rocket and mortar attack on their base at Combat Outpost (COP) Zerak on January 22, 2010 in Zerak, Afghanistan. No injuries were reported in the heavy rocket and mortar barrage which resulted in nine mortars landing inside of the small base. COP Zerak, located in Paktika Province, works at disrupting and suppressing Taliban routes into Afghanistan from neighboring Pakistan. The province, which is roughly the size of Vermont, shares a restive and porous 600 kilometer border with Pakistan. Getty Images logo Getty Images 28 months ago

ZERAK, AFGHANISTAN - JANUARY 22: Soldiers with the US Army Able Company, 3-509 Infantry Battalion head for a mountain to search for enemy fighters following an afternoon rocket and mortar attack on their base at Combat Outpost (COP) Zerak on January 22, 2010 in Zerak, Afghanistan. No injuries were reported in the heavy rocket and mortar barrage which resulted in nine mortars landing inside of the small base. COP Zerak, located in Paktika Province, works at disrupting and suppressing Taliban routes into Afghanistan from neighboring Pakistan. The province, which is roughly the size of Vermont, shares a restive and porous 600 kilometer border with Pakistan.