War_Conflict

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Defense Secretary Leon Panetta performs a swearing in ceremony to reenlist four troops during his visit to Incirlik Air Base, Turkey, Friday, Dec. 14, 2012. Panetta is heading home after spending three days in Afghanistan meeting with troops, commanders and Afghani leaders. (AP Photo/Susan Walsh, Pool)

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Defense Secretary Leon Panetta during a visit with troops at Incirlik Air Base, Turkey, Friday, Dec. 14, 2012. Panetta stopped to visit troops in Turkey before heading home after spending three days in Afghanistan. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta, left, goes to shake hands with Army Maj. Gen. Robert Abrams, right, after Abrams introduced Panetta to the troops during a visit to Kandahar Airfield in Kandahar, Afghanistan, Thursday, Dec. 13, 2012. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta speaks to the troops during a visit to Kandahar Airfield in Kandahar, Afghanistan, Thursday, Dec. 13, 2012. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta meets with troops at Kabul International Airport in Kabul, Afghanistan, Friday, Dec. 14, 2012, before boarding his plane and heading back to Washington. Panetta spent three days in Afghanistan meeting with troops, commanders and Afghani leaders. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta speaks to the troops during a visit to Kandahar Airfield in Kandahar, Afghanistan, Thursday, Dec. 13, 2012. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta walks out with Afghanistan's Defense Minister Gen. Bismillah Khan Mohammadi following their meeting in Kabul, Afghanistan, Thursday, Dec. 13, 2012. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta and Afghanistan President Hamid Karzai arrive for their joint news conference at the Presidential Palace in Kabul, Afghanistan, Thursday, Dec. 13, 2012. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta poses for a photo with troops at Kabul International Airport in Kabul, Afghanistan, Friday, Dec. 14, 2012, before boarding his plane and heading back to Washington. Panetta spent three days in Afghanistan meeting with troops, commanders and Afghani leaders. (AP Photo/Susan Walsh, Pool)

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U.S. Defense Secretary Leon Panetta waves as he boards his plane at Kandahar Airfield in Kandahar, Afghanistan, Thursday, Dec. 13, 2012. Panetta visited with troops and had meeting with commanders during his visit. (AP Photo/Susan Walsh, Pool)

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Defense Secretary Leon Panetta performs a swear-in ceremony to reenlist four troops during his visit to Incirlik Air Base, Turkey, on Dec. 14, 2012. Panetta is heading home after spending three days in Afghanistan meeting with troops, commanders and Afghani leaders. (Associated Press)

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**FILE** U.N. Ambassador Susan E. Rice (center), listens as Palestinian President Mahmoud Abbas speaks Nov. 29, 2012, during a meeting of the United Nations General Assembly prior to a vote on a resolution on the issue of upgrading the Palestinian Authority's status to non-member observer state at the United Nations headquarters. (Associated Press)

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U.S. Defense Secretary Leon Panetta meets with troops at Kabul International Airport in Kabul, Afghanistan, Friday, Dec. 14, 2012, before boarding his plane and heading back to Washington. The Pentagon says it will send Patriot air defense missiles and 400 troops to Turkey as part of a NATO force meant to protect Turkish territory from potential Syrian missile attack. (AP Photo/Susan Walsh, Pool)

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Kurdish members of the Free Syria Army ride on a tank stolen from the Syrian army in Fafeen village, north of Aleppo, in Syria on Wednesday. The rebels have made significant gains on the ground in Damascus, Deir al-Zour and Aleppo, where they have overrun military bases. (Associated Press)