Pentagon Pentagon

An A-18C Hornet attached to Strike Fighter Squadron (VFA) 87, prepares to launch from the flight deck of the aircraft carrier USS George H.W. Bush (CVN 77) to conduct strike missions against Islamic State group targets. Robert Burck/AP hide caption

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Robert Burck/AP

An Israeli Merkava tank near the Hamas-controlled Gaza Strip border in southern Israel, on Thursday. The Pentagon confirms that Israel tapped a U.S. weapons stockpile for tank rounds. Debbie Hill/UPI/Landov hide caption

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Debbie Hill/UPI/Landov

Secretary of Defense Chuck Hagel issued a statement announcing the recall of "most DoD civilians" who were put on furlough by the government shutdown. Jacquelyn Martin/AP hide caption

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Jacquelyn Martin/AP

Women in the U.S. military will be integrated into front-line combat units by 2016, the Pentagon says. Here, female Marine recruits stand in formation during pugil stick training in boot camp earlier this year at Parris Island, S.C. Scott Olson/Getty Images hide caption

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Scott Olson/Getty Images

New Defense Secretary Chuck Hagel, left, as he was sworn in Wednesday morning at the Pentagon. His wife, Lilibet, held the Bible. Michael L. Rhodes, the Pentagon's director of administration and management, administered the oath. MC1 Chad J. McNeeley/Office of the Secretary of Defense hide caption

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MC1 Chad J. McNeeley/Office of the Secretary of Defense