New U.S. Defense Secretary Ashton Carter is holding talks in Kuwait with top U.S. commanders and diplomats on U.S. efforts to fight the Islamic State group.
US Defense Chief: 'Lasting Defeat' Needed Against Islamic State

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Defense Secretary Ashton Carter speaks with U.S. military personnel at Kandahar Airfield in Afghanistan, Feb. 22, 2015.

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U.S. Defense Secretary Ashton Carter listens to remarks by Afghan President Ashraf Ghani during a news conference at the Presidential Palace in Kabul, Feb. 21, 2015.