2015年5月27日至29日，在反法西斯战争胜利70周年之际，张乃根教授应邀作为中国国际法学界的学者代表，出席由俄罗斯联邦司法部主办的圣彼得堡国际法论坛。毕业于圣彼得堡大学的俄罗斯联邦政府总理梅杰韦耶夫亲自出席27日下午的论坛开幕式并致辞。86个国家的1500多位专家学者，包括61个官方代表团，参加在冬宫附近原总参谋部大楼内举行的该全球性论坛。

 2015年圣彼得堡国际法论坛会场及参加国国旗（五星红旗在中央）

张乃根教授以嘉宾身份应邀出席28日下午12点半至14点的“国际法/法治”专场，和上百位与会者一起讨论“多边体系中的单边制裁：法律挑战”，并以《单边制裁：缺乏联合国宪章的法律依据》为题，用英语作了主旨发言，其中分析了去年以来因乌克兰危机引起美国与欧盟对俄罗斯实施经济制裁的严重后果，根据联合国宪章探讨了多边主义与单边主义的当代对峙，认为单边主义缺乏宪章的法律依据，参照世界贸易组织的争端解决机制，提出宪章秩序下的全球多边治理设想，包括改革安理会，完善经社理事会，提升新的人权理事会，构建面向未来的“三重”理事会体制。

张乃根教授在圣彼得堡国际法论坛会场留影

在“国际法/法治”专场发言的专家学者有：俄罗斯联邦宪法性立法委员会主席Andrey Klishas先生、俄罗斯联邦经济发展部贸易谈判司司长Maksim Medvedkov、法国巴黎西大学国际法研究中心主任Jean-Marc Thouvenin教授等。

2015年圣彼得堡国际法论坛会标

6月5日，论坛代表处特地发给张乃根教授如下感谢信：
 

Gratitude Letter

发件人：St. Petersburg International Legal Forum delegate@spblegalforum.com

时 间：2015年06月05日 22:07:36 (星期五)

收件人：zhangng@fudan.edu.cn

Dear Dr Zhang Naigen,

On behalf of the Organizing Committee we would like to express our sincere gratitude for your participation in the V St. Petersburg International Legal Forum, which contributed immensely to the success of the entire event. Your professionalism and personal involvement in the activities of the Forum were the key to their quality and high international level.

The Forum has evolved into one of the largest international debate platforms for dialogue between legal experts. Over three and a half thousand participants from 84 countries took part in the Forum, including 61 official delegations. Representatives of nearly all legal specializations and systems took part in discussions on a wide range of issues of law and justice.

We hope that the Forum with its comprehensive business agenda and cultural programme as well as the time spent in St. Petersburg have lived up to your expectations and you will honor us with your personal participation in the VI International Legal Forum that will take place in May, 2016.

We would be extremely grateful to hear your impressions of strong and weak sides of the event and to get your comments and suggestions to improve our future work. Please feel free to address them to the Delegate Management at delegate@spblegalforum.com.

See you at the VI St. Petersburg International Legal Forum!
 

Best regards,
Delegate Management

CC “St. Petersburg International Legal Forum”

191002 St. Petersburg, The Fontanka Embankment 50, lit.E

Phone/Fax: +7 (812) 449-36-21

www.spblegalforum.com