Thursday, 01 June 2017 
I 18:30 h I Festsaal

The UN collective security system:
Wishful thinking?

Ernst Sucharipa Memorial Lecture

Larry D. Johnson
Former Assistant Secretary-General for Legal Affairs, United Nations; Adjunct Professor of Law, UN Externship programme at Columbia Law School; Professorial Lecturer at the Diplomatic Academy of Vienna

Hans Winkler
Director, Diplomatic Academy of Vienna

Hanspeter Neuhold
Professor emeritus of International Law and International Relations,
University of Vienna