2014–2016 Ambassador of the Federal Republic of Germany to the United Arab Emirates
2011–2014 Ambassador of the Federal Republic of Germany to the Republic of Ireland
2007–2011 Minister, German Embassy London
2006–2007 Visiting Fellow at Stiftung Wissenschaft und Politik
2003–2006 Deputy Director-General, Department of European Affairs, Federal Chancellery
Contribution to a Research Paper 2021/RP 10, 13.12.2021, 125 Pages, pp. 103–106
Contribution to a Research Paper 2021/RP 10, 13.12.2021, 125 Pages, pp. 17–20
Opportunities and Risks of European Self-Defence
doi:10.18449/2021RP01
The Dual Task of the German Presidency: Containing the Crisis and Giving a Lasting Impetus to European Solidarity and Autonomy
doi:10.18449/2020C33
Deeper integration and shared sovereignty needed to meet future challenges