On October 12 (Mon.), 2020, the Center for East Asian Cooperation of the Sejong Institute held the 2nd internal seminar. Dr. PARK Da Jung, a visiting research fellow of the institute, presented her paper on the topic of “The Impact of the Sino-Soviet Treaty of Friendship, Alliance and Mutual Assistance (February 1950) on the U.S. Korea Policy: Focusing on the U.S. Entry of the Korean War.” This seminar was moderated by Dr. LEE Jong-seok, director of the Center for East Asian Cooperation.