CMSgt Jeffery D. Sipos serves as the Command Chief Master Sergeant for the Twentieth Air Force, F.E. Warren Air Force Base, Wyoming. Twentieth Air Force is responsible for the nation’s Minuteman III intercontinental ballistic missile force, organized into three combat missile wings and one air base wing, with more than 12,000 assigned Airmen. CMSgt Sipos is the Twentieth Air Force commander’s primary advisor on mission effectiveness, professional development, mission readiness, training, utilization, health, morale and welfare of over 7,300 enlisted personnel.
CMSgt Sipos entered the Air Force in April 1996. He graduated from the Heating, Ventilation, Air Conditioning and Refrigeration (HVAC/R) Apprentice Course at Sheppard Air Force Base, Texas. He has held a variety of leadership positions at the squadron and group levels for the civil engineering and combat communications career fields. He served as the Senior Enlisted Leader, 18th Civil Engineer Group, Kadena Air Base, Okinawa, Japan. He also served as the 72nd Air Base Wing Command Chief, Tinker Air Force Base, Oklahoma. Chief Sipos has deployed in support of operations Southern Watch, Enduring Freedom, and Iraqi Freedom.
Prior to assuming his current role, he served as Command Chief Master Sergeant of the 509th Bomb Wing, Whiteman Air Force Base, Missouri.
EDUCATION
2001 Airman Leadership School, Yokota Air Base, Japan
2006 Non-Commissioned Officer Academy, Robins Air Force Base, Ga.
2010 Associate of Applied Science, Mechanical and Electrical Technology, Community College of the Air Force
2013 Senior Non-Commissioned Officer Academy, Maxwell-Gunter AFB, Ala.
2015 Senior Enlisted Joint Professional Military Education, by correspondence
2015 Professional Manager Certification, Community College of the Air Force, Maxwell AFB, Ala.
2016 Naval War College Senior Leader Course, by correspondence
2018 Chief Leadership Course, Maxwell AFB, Ala. 2018 Advanced Nuclear Concepts Course, Maxwell AFB, Ala.
2019 Command Chief Master Sergeant Training Course, Joint Base Andrews, Md.
2021 Senior Enlisted Legal Orientation, Maxwell AFB, Ala.
2022 Continuous Process Improvement for Executives, Duke Institute for Defense & Business, N.C.
2022 Artificial Intelligence National Security, Massachusetts Institute of Technology, Cambridge, Mass.
2023 Impact: Human Performance for Executives, The Pentagon, Arlington, Va.
2025 Nuclear 400: Senior Leader Nuclear Management, Kirtland AFB, N.M.
2026 KEYSTONE Leadership Course, Washington, D.C.
ASSIGNMENTS
1. April 1996 – May 1996, Trainee, Basic Military Training, 321st Training Squadron, Lackland Air Force Base, Texas 2. May 1996 – October 1996, Student, HVAC/r, 366th Training Squadron, Sheppard AFB, Texas
3. October 1996 – July 2000, HVAC/R Apprentice, 20th Civil Engineer Squadron, Shaw AFB, S.C.
4. August 2000 – August 2004, Heating, Ventilation, Air Conditioning and Refrigeration Journeyman, 374th Civil Engineer Squadron, Yokota Air Base, Japan
5. August 2004 – December 2008, Section Chief, Civil Engineer Support, 53rd Combat Communications Squadron, Robins AFB, Ga.
6. December 2008 – February 2013, Superintendent and Additional Duty First Sergeant, Infrastructure, Undisclosed Location
7. February 2013 – August 2014, Superintendent, Facility Systems, 5th Civil Engineer Squadron, Minot AFB, N.D.
8. September 2014 – June 2015, Superintendent, Engineering Flight, 5th Civil Engineer Squadron, Minot AFB, N.D.
9. June 2015 – November 2016, Superintendent, Facility Systems, 35th Civil Engineer Squadron, Misawa AB, Japan
10. December 2016 – May 2017, Superintendent, Operations, 35th Civil Engineer Squadron, Misawa AB, Japan
11. June 2017 – April 2018, Squadron Superintendent, 5th Civil Engineer Squadron, Minot AFB, N.D
12. May 2018 – September 2019, Group Superintendent, 5th Mission Support Group, Minot AFB, N.D.
13. October 2019 – January 2022, Group Superintendent, 18th Civil Engineer Group, Kadena AB, Japan
14. February 2022 – June 2024, Command Chief, 72nd Air Base Wing, Tinker AFB, Okla.
15. June 2024 – July 2026, Command Chief, 509th Bomb Wing, Whiteman AFB, Mo.
16. July 2026 – present, Command Chief, 20th Air Force, F.E. Warren AFB, Wyo.
MAJOR AWARDS AND DECORATIONS
Legion of Merit
Meritorious Service Medal with four oak leaf clusters
Air Force Commendation Medal with two oak leaf clusters
Air Force Achievement Medal with two oak leaf clusters
Air Force Recognition Ribbon Nuclear Defense Operations Service Medal with “N” Device