Sally, a bomb-sniffing dog, assists Marines in the search for IEDs during their offensive in Marjah, a Taliban-infested area of southern Afghanistan. Soraya Sarhaddi Nelson/NPR hide caption

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An Afghan security officer patrols outside the shattered Park Residence guesthouse in the Shahre Naw area in the heart of Kabul. Behrouz Mehri/AFP/Getty Images hide caption

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A lieutenant issues orders as U.S. Marines come under Taliban sniper fire in the northeast of Marjah on Feb. 14. Patrick Baz/AFP/Getty Images hide caption

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Gen. Stanley McChrystal, the top commander of U.S. and NATO forces in Afghanistan, has apologized to the Afghan government for U.S. military strikes that killed at least 39 civilians. Manan Vatsyayana/AFP/Getty Images hide caption

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Haji Zahir, the new governor of Marjah in Helmand province, listens to residents' grievances Monday. It was the first time an Afghan government official visited the former Taliban stronghold in two years. Soraya Sarhaddi Nelson/NPR hide caption

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The Afghan head of the Third Brigade 205th corps, Gen. Mohiudin Ghori, tells Marja villagers that it is time to back the government, not the Taliban. Soraya Nelson/NPR hide caption

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