John F. Plumb serves as Head of Strategy at K2 Space, where he focuses on advancing next-generation satellite capabilities designed to deliver greater scale, resilience, and affordability to national security space missions.

Plumb previously served as the Assistant Secretary of Defense for Space Policy, where he was responsible for overseeing U.S. Department of Defense space strategy, policy, and international engagement. In that role, he helped shape national security space priorities during a period of rapid evolution in the space domain, including strengthening allied cooperation, advancing responsible space behavior, and guiding policy for resilient space architectures in an increasingly contested environment.

Before his Pentagon leadership, Plumb held senior policy roles on Capitol Hill and within the executive branch, including serving on the National Security Council staff and as a professional staff member on the Senate Armed Services Committee. Across government and industry, his career has centered on aligning strategy, technology, and policy to ensure the United States maintains a competitive edge in space.

At K2 Space, Plumb brings that strategic depth to the commercial sector — helping bridge national security requirements with innovative satellite manufacturing approaches built for scale.

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Rob Mitrevski serves as President, Golden Dome Strategy and Integration at L3Harris Technologies, where he leads strategic integration efforts focused on advancing next-generation missile defense and space-enabled capabilities in support of national security missions.

With more than three decades of experience in aerospace and defense, Mitrevski has held senior executive roles spanning space systems, missile defense, air and missile integration, and advanced mission solutions. Prior to his current role, he served as President of Space and Airborne Systems at L3Harris, overseeing a broad portfolio of space payloads, missile warning systems, resilient communications, ISR technologies, and classified national security programs.

Throughout his career, he has led large-scale engineering and integration organizations responsible for delivering complex, mission-critical systems to the U.S. Department of Defense, Intelligence Community, civil agencies, and international partners. His expertise spans strategic planning, systems engineering, operational integration, and scaling advanced technologies from concept to deployment.

Mitrevski holds degrees in engineering and business and has built his career at the intersection of technical innovation and strategic execution — aligning industry capabilities with evolving national security priorities.

On this episode of Spacepower, Rob joins us to discuss the strategic importance of integrated missile defense architectures, the role of industry in accelerating resilient space capabilities, and what it will take to align technology, policy, and partnerships to meet emerging threats in an increasingly contested domain.

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Lt. General (Ret.) David J. Buck is the President of BRPH Mission Solutions at BRPH, a technically focused architecture, engineering, and construction firm supporting mission-critical clients in aerospace, defense, national security, and advanced manufacturing.

Lt. General (Ret.) David J. Buck is a retired U.S. Air Force officer whose distinguished military career spanned more than three decades in space, nuclear, and cyberspace operations. He earned his commission as a distinguished graduate of Officer Training School in 1986 and went on to command at the squadron, group, and wing levels throughout his service. His operational experience included strategic missile operations, space launch and range operations, satellite command and control, and advanced space mission areas.

Buck culminated his Air Force service as Commander of the 14th Air Force (Air Forces Strategic) and Commander of the Joint Functional Component Command for Space under U.S. Strategic Command at Vandenberg Air Force Base. In that capacity he led more than 19,500 personnel responsible for providing strategic missile warning, nuclear command and control, space situational awareness, position/navigation/timing, and other critical space effects in support of national security objectives. He retired from the Air Force in 2018.

In his current role at BRPH, Buck applies his operational leadership and strategic expertise to help organizations navigate complex mission requirements, develop innovative capabilities, and accelerate growth across defense, aerospace, national security, and manufacturing sectors.

His awards include multiple Defense and Air Force distinguished service decorations, including the Distinguished Service Medal, Defense Superior Service Medal, Legion of Merit, and Bronze Star Medal, reflecting both his leadership and impact over decades of service.

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