Charles Timothy Hagel ( <span style="margin-left:2px">;</span> born October 4, 1946) is an American politician and Army veteran who served as the 24th United States secretary of defense from 2013 to 2015 in the administration of Barack Obama. He previously served as chairman of the president's Intelligence Advisory Board from 2009 to 2013 and as a United States senator representing Nebraska from 1997 to 2009. Wikipedia
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