Gen. David Petraeus in Kandahar, Afghanistan, on July 4, 2011. U.S. Navy Lt. j.g. Haraz N. Ghanbari/Getty Images hide caption

itoggle caption U.S. Navy Lt. j.g. Haraz N. Ghanbari/Getty Images

Protesters in Karachi, Pakistan, burned an American flag earlier this month to express their anger over the airstrikes that killed 24 Pakistani soldiers. Rizwan Tabassum /AFP/Getty Images hide caption

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A man grieves as others try to help victims and remove bodies from the scene in Kabul earlier today (Dec. 6, 2011) after a suicide bomb exploded in a crowd of Shiite worshipers. Massoud Hossaini /AFP/Getty Images hide caption

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The airstrikes that killed 24 Pakistani soldiers have sparked protests. In Peshawar, Pakistan, on Thursday students shouted anti-U.S. slogans. A. Majeed /AFP/Getty Images hide caption

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Lance Cpl. Jake Romo does physical therapy at the Naval Medical Center in San Diego, Calif. He lost both legs in an explosion in Sangin, Afghanistan, in February 2011, while serving with the 3/5 Marines. David Gilkey/NPR hide caption

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On the Afghan side of the border with Pakistan, a U.S. soldier stood guard last month as a boy walked by in Nangarhar province. Tauseef Mustafa /AFP/Getty Images hide caption

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Secretary of State Hillary Clinton speaks in Islamabad Friday, as Pakistan Foreign Minister Hina Rabbani Khar looks on. Clinton urged Pakistan to act swiftly to dislodge the militant Haqqani network.

Kevin Lamarque/AFP/Getty Images hide caption

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