Thomas Gray, The U.S. Army Space and Missile Defense Command Liaison to the Combined Arms Center and Army University, delivered a presentation on “The Domain of Space and National Security” during the InterAgency Brown-Bag lecture Sept. 24, 2019 in the Lewis and Clark Center’s Arnold Conference Room, Fort Leavenworth, Kan. Photo by Tisha Swart-Entwistle, Combined Arms Center Public Affairs Office.