Player Embed Code: Download Embed Share Deputy Secretary of Defense on Climate Change and the DoD Defense.gov Nov. 8, 2021 | 1:56 Deputy Secretary of Defense Dr. Kathleen Hicks delivers remarks at Wayne State University in Detroit, Mich., Nov. 8, 2021. Hicks traveled to Michigan discuss department priorities to address future war fighting needs, and reinforce the importance of manufacturing, renewable energy, and green technology to U.S. National Security.