U.S. soldiers in Afghanistan walk away from a helicopter at Forward Operating Base Connelly in the eastern province of Nangarhar on Aug. 13. The U.S. formally ended combat operations in Afghanistan at the end of last year. But nearly 10,000 American troops remain in the country and the U.S. frequently carries out air sorties. Fourteen American military personnel have died in Afghanistan this year. Wakil Kohsar/AFP/Getty Images hide caption

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On May 21, an Afghan child is treated at a Doctors Without Borders hospital in the northern city of Kunduz, after being injured in a fight between the Taliban and Afghan security forces. Shah Marai/AFP/Getty Images hide caption

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Sgt. Bowe Bergdahl faced a preliminary hearing in San Antonio last week. He faces a possible court-martial for walking off his base in Afghanistan in 2009. An Army investigation produced a wealth of new information on his motivations. The major general who led the inquiry recommended against a prison sentence. AP hide caption

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The Pentagon's only maximum security prison, at the U.S. Army's Fort Leavenworth in Kansas, is one of the facilities being considered for placement of Guantanamo prisoners deemed too dangerous to release. Julie Denesha/Getty Images hide caption

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U.S. Marines arrive at Saudi Arabia's Dhahran Air Base on Aug. 21, 1990. The U.S. began a buildup in the region just days after Iraq invaded Kuwait on Aug. 2 of that year. The U.S. military has been active in Iraq virtually nonstop for the past quarter-century. Gerard Fouet/AFP/Getty Images hide caption

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Alan Oates was exposed to herbicides, such as Agent Orange, while serving in Vietnam in 1968. Decades after returning home, he was diagnosed with Parkinson's disease, and because Congress passed the Agent Orange Act, he's able to receive VA benefits. Courtesy of Alan Oates hide caption

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Army Cpl. Simranpreet Lamba (center) stands in formation with fellow soldiers before taking the oath of citizenship, prior to his graduation from basic training at Fort Jackson, S.C., in 2010. He was the first enlisted soldier to be granted a religious accommodation as a Sikh since 1984. Brett Flashnick/AP hide caption

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Chagossians weep at the grave of their parents on Peros Banos Island April 10, 2006. Fifteen elders are allowed to visit once a year. AFP/Getty Images hide caption

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Sgt. Courtney White carries her machine gun before a live fire exercise at the Marine base at Twentynine Palms, Calif. David Gilkey/NPR hide caption

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As an Army chaplain in Iraq, David Peters administered last rites and grieved with survivors. When he came home, he says, he "fell apart emotionally and spiritually." Courtesy of Robert K. Chambers hide caption

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A helicopter's eye view of a new ETU, funded by USAID and built by Save the Children. Kelly McEvers/NPR hide caption

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Iraqi soldiers walk in Jurf al-Sakhr, south of the capital Baghdad, on Monday after Iraqi military forces retook the area from Islamic State militants. Iraqi forces, supported by U.S. airstrikes, have made limited gains in recent months, but critics are questioning whether the U.S. strategy is likely to succeed. Haidar Mohammed Ali/AFP/Getty Images hide caption

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