U.S. Army Sgt. Bowe Bergdahl watches in July 2009 as one of his captors displays Bergdahl's identity tag during the first of several videos the Taliban released of the soldier. Reuters/Landov hide caption

itoggle caption Reuters/Landov

Sgt. Kyle Gonzales, a sniper with the 82nd Airborne, has a cigarette after a gun battle near the village of Babaker, Giro district, Ghazni province. The soldiers have engaged in gun battles every time they push into the hamlets north of their forward operating base. David Gilkey/NPR hide caption

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Country music singer Brad Paisley performs during a troop rally with President Obama during an unannounced visit at Bagram Air Field on Sunday. Evan Vucci/AP hide caption

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President Barack Obama, right, is greeted by U.S. Ambassador to Afghanistan James Cunningham, center, and Marine General Joseph Dunford, commander of the U.S.-led International Security Assistance Force (ISAF), as he arrives at Bagram Air Field for an unannounced visit, on Sunday. Evan Vucci/AP hide caption

itoggle caption Evan Vucci/AP

Afghan villagers pray at the site of a landslide in Abi-Barik Saturday. Rescuers searched in vain for survivors of the disaster, which is feared to have killed more than 2,000 people. Shah Marai/AFP/Getty Images hide caption

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The women of the Afghan National Cycling Federation team train outside Kabul, the capital. They face poor road conditions, terrible traffic, lots of gawking and even threats of violence in pursuit of their sport. Peter Breslow/NPR hide caption

itoggle caption Peter Breslow/NPR

Afghan women shop in Kabul Saturday. Women cast more than a third of the ballots — 36 percent — in Afghanistan's presidential election, officials said. The race will likely head to a runoff next month. Wakil Koshar/AFP/Getty Images hide caption

itoggle caption Wakil Koshar/AFP/Getty Images

An Afghan police officer kept watch Thursday at the gate of the Cure hospital in Kabul. Earlier, authorities say, a security guard at the hospital opened fire — killing three American citizens. Shah Marai /AFP/Getty Images hide caption

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Louise Hastie, the shelter manager of Nowzad Dogs in Kabul, holds a stray puppy named Aki. Afghanistan has a large population of street cats and dogs. While there are no government programs to control the animals, foreigners have taken in some. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR