Col James T. Horne, III is the Senior Materiel Leader, Launch Execution Delta, Assured Access to Space, Space Systems Command. He leads a 525+ member team executing the $12.3B National Security Space Launch program directing production, integration and launch of the Falcon, Vulcan, Atlas, and Delta launch vehicle systems.

Col Horne recently served as the Deputy Director, Assured Access to Space Directorate, and Deputy Director, Operations, Space Systems Command. He facilitated the integration of space mobility plans, policy, requirements, and capabilities to rapidly launch, sustain, and reconstitute national security space assets.

Col Horne received his commission from the United States Air Force Academy in May 2000 and earned a Masters of Business Administration from the Marshall School of Business at the University of Southern California in 2007. He transferred to the United States Space Force in June 2021. He has commanded the 30th Range Management Squadron at Vandenberg AFB, CA; served as Materiel Leader and Chief Engineer, Atlas V, at Los Angeles AFB, CA; and the Chief of ICBM Standardization and Evaluation, and as a Minuteman III Missile Combat Crew Commander, Evaluator and Assistant Director of Operations. His acquisitions experience includes work with Tactical Data Link systems in support of Operations Enduring Freedom, Iraqi Freedom, and Noble Eagle, as well as space launch supporting the design, development, qualification and first flights of the Atlas V and Vulcan rocket programs. In the deployed environment he has served as a Personal Representative to Enemy Non-Combatant Detainees from the Global War on Terror, at the Joint Detention Group, Naval Base Guantanamo Bay, Cuba. His staff assignments include Headquarters Air Force and the Office of the Secretary of Defense.