Areas of Expertise

  • International legal aspects of international relations
  • Constitutional law aspects of the use of the German armed forces and Germany’s membership in the United Nations, NATO, and the European Union
  • EU law
  • The role of cities and subnational actors in the international order

Short Bio

Helmut Philipp Aust, an associate fellow in DGAP’s Security and Defense Program, has been a professor of public and international law at Freie Universität Berlin since 2016. In spring 2022, he is a visiting professor at the Institut des hautes études internationales (IHEI) of the Université Paris II Panthéon-Assas.

Previously, Aust was a visiting professor at the University of Konstanz and research fellow at the Ludwig-Maximilians-Universität München, Universität der Bundeswehr München, and Humboldt-Universität zu Berlin.

He has absolved research stays at international research institutions that include the Lauterpacht Centre for International Law at the University of Cambridge and the Institute of International Law and the Humanities at Melbourne Law School.

Aust studied law at the University of Göttingen and Paris XII. He obtained his doctoral degree at Humboldt-Universität zu Berlin where he also completed his post-graduate studies.


German, English, French


[Last updated: January 2023]

Prof. Dr. Helmut Philipp Aust


In the media


Streumunition und Völkerrecht

Zur Verwendung von Streumunition durch die Ukraine und die Folgen für verbündete Staaten wie die Bundesrepublik Deutschland
Prof. Dr. Helmut Philipp Aust
Externe Publikationen