On the morning of October 29, 2025, a delegation from the Arsenault Family Foundation China visited the Center for International Security and Strategy (CISS) at Tsinghua University. The two sides exchanged views and held discussions on current U.S.–China relations, the fentanyl issue, and potential cooperation mechanisms.

From October 23 to 24, 2025, Dr. Sun Chenghao, Associate Research Fellow at the Center for International Security and Strategy (CISS), Tsinghua University, attended the international academic symposium “Understanding China’s Advanced Technology Export Controls” held in The Hague, the Netherlands. The conference was co-hosted by Dr. Guangyu Qiao-Franco, Assistant Professor at Radboud University, and Dr. Rogier Creemers, Assistant Professor at Leiden University.

On October 16, a delegation of senior officials from the United Nations Peacekeeping Affairs visited the Center for International Security and Strategy (CISS) at Tsinghua University. Experts and scholars from CISS and the Tsinghua University Schwarzman College’s Tong Zhongying Global Development Center engaged in in-depth discussions on the current status and future prospects of UN peacekeeping operations, as well as China’s evolving role in international security.

On October 14, a U.S. delegation on nuclear security visited the Center for International Security and Strategy (CISS), Tsinghua University, for an in-depth discussion with CISS experts on U.S.–China nuclear strategy and broader nuclear issues.

On October 9, 2025, the CISS Youth program at the Center for International Security and Strategy (CISS), Tsinghua University, held the first session of its “Strategic Youth Roundtable” series, focusing on Public Opinion and the Young Generation. The event featured Susan Shirk, Professor at the University of California, San Diego, and Honorary Director of the 21st Century China Center, and Da Wei, Professor at the Department of International Relations and Director of CISS, as the keynote speakers.

Recently, Daniel Russel, Distinguished Fellow at the Asia Society Policy Institute (ASPI) and former U.S. Assistant Secretary of State for East Asian and Pacific Affairs, visited the Center for International Security and Strategy (CISS), Tsinghua University. He engaged in discussions with CISS experts on China-U.S. relations and regional hotspot issues.

On September 9, 2025, Ms. Sevim Dagdelen, Vice Chair of the Bündnis Sahra Wagenknecht – Reason and Justice (BSW), visited the Center for International Security and Strategy (CISS) at Tsinghua University. She held in-depth discussions with Liu Feng, Deputy Dean of the School of Social Sciences, Deputy Director of CISS, and Professor in the Department of International Relations; Chen Qi, Deputy Director of CISS and Professor in the Department of International Relations; Qu Wei, Director of the Global Learning Center of the School of Sociology; Shi Yan, Assistant Research Fellow at CISS; and Xing Houyuan, expert of the Global Alliance for Trade in Services. The discussions focused on current international dynamics, the Ukraine crisis, as well as China-U.S. and China-Europe relations.

On September 9, 2025, Daniel Leaf, former Deputy Commander of the U.S. Pacific Command, visited the Center for International Security and Strategy (CISS) at Tsinghua University for discussions with CISS experts on U.S.-China relations and regional hotspot issues.

From September 4 to 6, 2025, Dr. Sun Chenghao, Fellow, and Niu Qiyang,Pre-Doctoral Fellow at the Center for International Security and Strategy (CISS), Tsinghua University, attended the 2025 Munich Young Leaders (MYL) Annual Meeting in Lisbon, Portugal.

From July to early August 2025, Sun Chenghao, Associate Research Fellow at the Center for International Security and Strategy (CISS) of Tsinghua University, was invited to undertake a short-term visiting study at the Centre for Humanitarian Dialogue (HD) in Switzerland. During his stay, he engaged in discussions with HD researchers and policy advisors on issues including international security, conflict mediation, China–U.S.–Europe relations, and artificial intelligence.

From July 3 to 7, Da Wei, Director of the Center for International Security and Strategy (CISS) at Tsinghua University and Professor in the Department of International Relations, visited Russia to teach at the summer school jointly attended by Chinese and Russian students, organized by the Higher School of Economics (HSE) in Russia. The theme of this year’s summer school was “Perspectives of the Global Majority: Practices and Narratives.” Da Wei delivered a special lecture titled “Multipolarity: Challenges and Opportunities” to students from both China and Russia. This marked the second consecutive year that he has taught at HSE. Following his lecture, Da Wei engaged in in-depth discussions with Russian scholars from HSE, the Russian International Affairs Council, and other institutions.

On July 17, 2025, the "Kick-off Meeting for the Transboundary Water Resources Cooperation Project and Launch Ceremony of the Lancang-Mekong Watch Website," hosted by the Center for International Security and Strategy (CISS) at Tsinghua University, was successfully held in Beijing, marking the official launch of the Lancang-Mekong Watch platform.