US Cyber Command Executive and Leadership Team

July, 2026

Leadership Overview

US Cyber Command has 8 executives leading key functions including strategy, operations, and technology.

Driven by national security imperatives, US Cyber Command provides the Department of Defense with essential cyberspace capabilities and critical support for cyber operations, safeguarding national interests in the digital domain.

Leadership Roles at US Cyber Command

  • Chief of Staff - Ken Paul
  • Deputy Chief of Staff - Joe Gelineau
  • Director, Uscc of Communications & Chief Information Officer (J6) - Timothy Turner
  • Cyber Command Chief of Staff (US) - Maj Gen Bradley L. Pyburn
  • Division Deputy Chief of Staff, Operations - Stephanie Gustafson
  • J9, Acquisition & Technology Diectorate Chief of Staff - Katrina Streeter
  • J5 Deputy Chief of Staff - Sheri Fleming
  • Chief Operations Officer - Christopher Assi
  • Ken Paul - Chief of Staff

    Ken Paul, the Chief of Staff at US Cyber Command, directs the strategic alignment of all staff functions, ensuring seamless integration of operational directives across the command. Overseeing daily operations, Ken Paul guarantees the efficient execution of mission-critical tasks supporting the Department of Defense's cyberspace capabilities. This leadership position involves coordinating inter-agency communications and resource allocation to bolster cyber operations. By optimizing internal processes, Ken Paul directly enhances the command's readiness and response effectiveness. Ultimately, Paul ensures the cohesive functioning of US Cyber Command's support structure, enabling robust cyber defense.

    Joe Gelineau - Deputy Chief of Staff

    Joe Gelineau, the Deputy Chief of Staff at US Cyber Command, supports the Chief of Staff in managing the command's extensive operational framework. Assisting in the oversight of daily activities, Joe Gelineau ensures the continuity and effectiveness of cyber operations crucial for national defense. This role involves facilitating communication channels and implementing strategic initiatives across various directorates. By providing critical support to leadership, Joe Gelineau contributes to the command's ability to deliver essential cyberspace capabilities. Gelineau's efforts are vital in maintaining the operational tempo and strategic focus of US Cyber Command's mission.

    Timothy Turner - Director, Uscc of Communications & Chief Information Officer (J6)

    Timothy Turner, the Director, Uscc of Communications & Chief Information Officer (J6) at US Cyber Command, architects the command's information technology infrastructure and communication systems. Overseeing the development and implementation of secure networks, Timothy Turner ensures the integrity and availability of data essential for cyber operations. This critical role involves managing all aspects of information assurance and technological advancement to support the Department of Defense's cyberspace capabilities. By driving innovation in communication technologies, Turner directly enhances the command's operational reach and effectiveness. Turner's leadership ensures US Cyber Command maintains a technological edge in a rapidly evolving digital landscape.

    Maj Gen Bradley L. Pyburn - Cyber Command Chief of Staff (US)

    Maj Gen Bradley L. Pyburn, the Cyber Command Chief of Staff (US) at US Cyber Command, directs the strategic planning and execution of all staff functions supporting the command's mission. Overseeing the integration of diverse operational elements, Maj Gen Bradley L. Pyburn ensures the cohesive delivery of cyberspace capabilities to the Department of Defense. This senior leadership position involves coordinating high-level initiatives and resource management to enhance cyber operations. By driving strategic alignment across all directorates, Maj Gen Bradley L. Pyburn significantly impacts the command's overall effectiveness and readiness. Pyburn's guidance is fundamental to maintaining US Cyber Command's operational superiority.

    Stephanie Gustafson - Division Deputy Chief of Staff, Operations

    Stephanie Gustafson, the Division Deputy Chief of Staff, Operations at US Cyber Command, supports the operational readiness and execution of cyber missions. Assisting in the management of day-to-day operational activities, Stephanie Gustafson ensures the efficient deployment of resources and personnel for critical cyber operations. This role involves coordinating tactical plans and overseeing the implementation of strategic objectives across operational divisions. By facilitating seamless operational flow, Stephanie Gustafson directly contributes to the command's ability to provide robust cyberspace capabilities. Gustafson's focus on operational excellence is key to US Cyber Command's success in defending national interests.

    Katrina Streeter - J9, Acquisition & Technology Diectorate Chief of Staff

    Katrina Streeter, the J9, Acquisition & Technology Directorate Chief of Staff at US Cyber Command, spearheads the strategic acquisition and technological development initiatives for the command. Overseeing the integration of advanced technologies, Katrina Streeter ensures US Cyber Command maintains a leading edge in cyberspace capabilities. This leadership role involves managing complex procurement processes and fostering innovation to support evolving cyber operations. By directing resource allocation for technology development, Streeter directly enhances the command's operational effectiveness. Streeter's expertise is crucial for equipping US Cyber Command with the cutting-edge tools necessary for national security.

    Sheri Fleming - J5 Deputy Chief of Staff

    Sheri Fleming, the J5 Deputy Chief of Staff at US Cyber Command, supports the strategic planning and policy development functions critical to the command's mission. Assisting in the formulation of long-term objectives, Sheri Fleming ensures alignment with national defense strategies for cyberspace operations. This role involves coordinating international partnerships and policy initiatives to enhance the command's global reach. By contributing to strategic foresight, Sheri Fleming directly supports the development of essential cyberspace capabilities. Fleming's dedication to strategic policy is integral to US Cyber Command's effectiveness in a complex geopolitical environment.

    Christopher Assi - Chief Operations Officer

    Christopher Assi, the Chief Operations Officer at US Cyber Command, directs the execution of all operational activities, ensuring the seamless delivery of cyberspace capabilities. Overseeing the command's day-to-day functions, Christopher Assi guarantees the efficient and effective implementation of cyber operations critical for national security. This leadership position involves managing complex logistical challenges and optimizing resource deployment across various operational theaters. By driving operational excellence, Christopher Assi directly enhances the command's readiness and response capacity. Assi's strategic oversight is fundamental to maintaining US Cyber Command's operational superiority and mission success.

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    Frequently Asked Questions Regarding US Cyber Command Top Executives and Leadership Team

    Who leads US Cyber Command?
    US Cyber Command is led by Ken Paul (Chief of Staff), along with executives such as Joe Gelineau (Deputy Chief of Staff) and Timothy Turner (Director, Uscc of Communications & Chief Information Officer (J6)).
    Who is part of US Cyber Command’s executive team?
    The executive team of US Cyber Command includes leaders such as Ken Paul (Chief of Staff), Joe Gelineau (Deputy Chief of Staff), Timothy Turner (Director, Uscc of Communications & Chief Information Officer (J6)) and other senior executives.
    How many executives does US Cyber Command have?
    US Cyber Command has 8 executives leading key business areas.
    What roles are included in US Cyber Command’s leadership team?
    The leadership team of US Cyber Command includes roles such as Chief of Staff, Deputy Chief of Staff, Director, Uscc of Communications & Chief Information Officer (J6), Cyber Command Chief of Staff (US), Division Deputy Chief of Staff, Operations.