Stephen Hadley, American soldier and diplomat, 21st United States National Security Advisor

Stephen John Hadley (born February 13, 1947) is an American attorney and senior government official who served as the 21st United States National Security Advisor from 2005 to 2009. He served under President George W. Bush during the second term of his administration. Hadley was Deputy National Security Advisor during Bush's first term. Before that Hadley served in a variety of capacities in the defense and national security fields. He has also worked as a lawyer and consultant in private practice.