May 2013 - April 2014,

Vice Chief of Staff, ROK Air Force

May 2014 - April 2015,

Superintendent of ROK Air Force Academy

*May 31, 2015,

2015, Retired from ROK Air Force as a Lt. General

Sep. 2015 - Aug. 2018,

Visiting professor, Chong-ju University

Mar. 2016 - Dec. 2018,

Member of Force Requirement Verification Advisory Committee, Military Planning Center, Korea Institute of Defense Analysis (KIDA)

Dec. 2016 - Dec. 2018,

Member of Advisory Committee to Agency of Free Economic Zone, Chungbuk province

Jan. 2018 - Dec. 2019,

Member of Policy Advisory Committee, Korea Retired Generals and Admirals Association

Mar. 2018 - Dec. 2019,

Member of Policy Advisory Committee, ROK-US Combined Forces Command

Aug. 2018 - May 2022,

Research fellow, Air and Space Power Research Institute (ASPI), Association of Republic of Korea Air Force

Nov. 2018 - Nov. 2020,

Member of Security and Science & Technology Advisory Committee, Gwangju Institute of Science and Technology (GIST)

Jan. 2019 - Dec. 2021.

Co-Representative, Korea Retired Generals & Admirals Defending the Nation (KORGAD)

Feb. 2019 - Dec. 2020,

Representative of VOICE of GENERALS, YouTube Channel sponsored by the KORGAD

Apr. 2020 - Apr. 2022,

Member of Advisory Committee, Overseas Koreans Foundation

Feb. 2017 -

present. Member of Board of Directors, Hanmin Academy

Mar. 2019 -

present, Visiting professor, Korea National University of Transportation

June 2022 -

present, Member of Board of Directors, Korean Veterans Association