Providing regional and global security governance is both increasingly common and controversial in Germany. The paper addresses the sources of current controversies in three areas: First, legal limits that emanate from the delegation of competences in regional and international institutions....

Germany's unique institutions of a 'unitary federal state', long considered part of the country's post-war success story, are now generally perceived as a 'joint decision trap' impeding effective policy responses to new economic and demographic challenges at both levels of government....