Yi Jisu, a professor at Myongji University, specializes in North Korean politics. His major works include “Soviet Asylum of North Korean Students in the 1950s and the Reinforcing of North Korea’s Closed System (2020),” Social Control in the Kim Il-sung Era—Based on the Testimonies of North Korean Defectors (2018), and Study of Kim Il-sung’s Dialogue with the Soviet Union During the Korean War (2018).