Keywords: 150306-D-NI589-472 (16549270230).jpg The 19th Secretary of Defense Dr William Perry delivers remarks shortly before 25th Secretary of Defense Ash Carter is sworn in during a ceremony in the Pentagon Auditorium March 6 2015 DoD photo by Glenn Fawcett Released https //www flickr com/photos/secdef/16549270230/ 150306-D-NI589-472 2015-03-06 15 22 https //www flickr com/people/68842444 N03 Ash Carter PD-USGov Ashton Carter 's ceremonial swearing in for Secretary March 2015 William Perry Photographs by Glenn Fawcett |