On 18 June 1953, he released 27,000 anti-communist prisoners who refused to return to the communist side.
The release of the anti-communist prisoners was a case in which South Korea released the anti-communist prisoners held in Geoje Island without the consent of the U.S. and other UN forces during the armistice talks of the Korean War.
Under the leadership of the Syngman Rhee regime at the time, anti-communist prisoners were evacuated from eight concentration camps across the country, including Busan, Gwangju and Nonsan.