An Afghan boy prays on Saturday, March 24, 2012, over the grave of one of the sixteen victims of a shooting rampage allegedly by a U.S. Army staff sergeant in the Panjwai district of Kandahar province, south of Kabul, Afghanistan. (AP Photo/Allauddin Khan)
U.S. Army and Afghan troops stand watch in a guard tower at their base in Panjwai, Afghanistan, in Kandahar province, on Sunday, March 11, 2012, after a U.S. Army sergeant allegedly killed 16 Afghan civilians in nearby villages. (AP Photo/Allauddin Khan)
U.S. Army Staff Sgt. Ahmed Kousay al-Taie, who was kidnapped in Baghdad in October 2006, is pictured with his wife, Israa Abdul-Satar. (AP Photo/Family Photo)
**FILE** U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, testifies Feb. 14, 2012, on Capitol Hill in Washington before the Senate Armed Services Committee to outline the Pentagon's budget. (Associated Press)
** FILE ** This undated file photo provided by the U.S. Army shows Pvt. Danny Chen, 19, who was killed Monday, Oct. 3, 2011, in Kandahar, Afghanistan. (AP Photo/U.S. Army, File) (AP Photo/U.S. Army, File)
U.S. Army Staff Sgt. Elama Palemene greets his wife, Annaden (right), and children Ko' Elani (left) and Pe' Ela during an early morning welcome-home ceremony at Fort Hood, Texas, for about 300 soldiers returning home from deployment in Iraq on Sunday, Dec. 18, 2011. (AP Photo/Erich Schlegel)
The last convoy of solders from the U.S. Army's 3rd Brigade, 1st Cavalry Division, crosses the border from Iraq into Kuwait on Sunday, Dec. 18, 2011. (AP Photo/Maya Alleruzzo)
US Marines of the 1 FSSG Forward ( 1st Force Service Support Group Forward) of the 1MEF ( First Marine Expeditionary Force ) in northern Kuwait watch the flashes of light from US Army artillery fire and Iraqi Scud missiles headed for Kuwait City from their bunker signaling the beginning of the ground offensive against Iraq, Thursday, March 20, 2003. ( J.M. Eddins Jr. / The Washington Times )
** FILE ** This undated file photo obtained by the Associated Press shows Bradley Manning, the U.S. Army private suspected of being the source of some of the unauthorized classified information disclosed on the WikiLeaks website. (AP Photo, File)
President Barack Obama walks in with Maj. Gen. Michael S. Linnington, Commander of the U.S. Army Military District of Washington, before placing a wreath at the Tomb of the Unknowns during a VeteranÃs Day ceremony at Arlington National Cemetery in Arlington, Va., Friday, Nov. 11, 2011. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama walks in with Maj. Gen. Michael S. Linnington, Commander of the U.S. Army Military District of Washington, before placing a wreath at the Tomb of the Unknowns during a Veterans Day ceremony at Arlington National Cemetery in Arlington, Va., Friday, Nov. 11, 2011. (AP Photo/Pablo Martinez Monsivais)
U.S. Army soldiers and Uganda People's Defense Force soldiers participate in a closing ceremony for operation Atlas Drop 11, an annual joint aerial delivery exercise, in Soroti, Uganda, in April. While putting few U.S. troops at risk, the United States is providing intelligence and training to fight militants across the continent, from Mauritania in the west along the Atlantic Ocean, to Somalia in the east along the Indian Ocean. (Associated Press)
Chad Ware, of Wheeling, Ill., a 1st Lieutenant in the U.S. Army and a member of the U.S. Army running team, wins the 36th Marine Corps Marathon in a time of 2:19:16 in Arlington, Va. on Oct. 30, 2011.
(T.J. Kirkpatrick/ The Washington Times)
Chad Ware, of Wheeling, Ill., a 1st Lieutenant in the U.S. Army and a member of the U.S. Army running team, climbs the final hill to win the 36th Marine Corps Marathon in a time of 2:19:16 in Arlington, Va. on Oct. 30, 2011.
(T.J. Kirkpatrick/ The Washington Times)
** FILE ** In this Tuesday, July 13, 2010, file photo, U.S. Army soldiers from 2nd Brigade, 10th Mountain Division board a C-17 aircraft at Baghdad International Airport as they begin their journey to the United States. (AP Photo/Maya Alleruzzo, File)