Player Embed Code: Download Embed Share Undersecretary of Defense for Acquisition and Sustainment speaks at National Defense Forum Defense.gov Dec. 1, 2018 | 46:05 Undersecretary of Defense for Acquisition and Sustainment Ellen Lord participates in a panel discussion on the defense industrial and innovation base during the Reagan National Defense Forum at the Ronald Reagan Presidential Library in Simi Valley, Calif., Dec. 1, 2018.