Afghan National Army soldiers kept watch at the gate of the Afghan air force compound in Kabul on Wednesday after an officer attacked NATO troops. Shah Marai/AFP/Getty Images hide caption

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An Afghan policemen peers into the opening of a tunnel at the Sarposa prison in Kandahar city. More than 480 inmates used the 1,000-foot tunnel to escape in a prison break that began late Sunday and early Monday. Allauddin Khan/AP hide caption

itoggle caption Allauddin Khan/AP

In the late 1990s, both Marinovich and Silva traveled to the Middle East to photograph the ongoing clashes in the region. Silva captured this image of a young Palestinian boy throwing a tire in the West Bank town of A-Ram in March 1997. Joao Silva/AP hide caption

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Captain Elizabeth Jackson of the U.S. 3rd Battalion teeters with an Afghan boy on a playground in southern Afghanistan. Peter Parks /AFP/Getty Images hide caption

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Afghanistan President Hamid Karzai attends the inauguration of the Afghan academic year in Kabul on March 23. Musadeq Sadeq/AP hide caption

itoggle caption Musadeq Sadeq/AP