佐藤特任教授、国際法学会主催の第6回市民講座「安全保障と国際法」において「国際連合と安全保障―集団安全保障制度の理論、実際と課題」と題して基調講演（オンライン）
Specially Appointed Prof. Sato presents the Keynote Lecture, “The United Nations and Security: Theory, Reality and Challenges of the Collective Security by the United Nations,” in the Sixth Public Lecture Series, “Security and International Law,” hosted by the Japanese Society of International Law, Zoom webinar.