Gates, Robert
From Longman Dictionary of Contemporary EnglishGates, RobertRobert GatesGates, Rob‧ert /ɡeɪts, ˈrɒbət $ -ˈrɑːbərt/ (1943-) a politician who became US Secretary of Defense in 2006 and did this job both for George W. Bush and for Barack Obama. Before becoming Secretary of Defense, he worked for the CIA (Central Intelligence Agency) and for the NSC (National Security Council)