Northrop Grumman Corporation elected retired U.S. Navy Admiral Gary Roughead to its board of directors. Roughead served as the 29th Chief of Naval Operations for the Navy prior to his retirement from the service in 2011. The addition of Roughead increases Northrop Grumman's board of directors to 13 members, 12 of whom are nonemployee directors. "Gary Roughead brings to our board a deep understanding of the global security challenges our nation and its allies are facing," said Wes Bush, chairman, chief executive officer and president. Roughead was appointed the U.