On April 3 and 4, 2014, Constitutional Transitions convened the first expert network meeting for our ongoing research project, “Constitutional Reform Processes and Security Sector Reform: Principles for Practice,” in The Hague, Netherlands. The meeting brought together a global network of experts to present case studies on ten countries that have undergone security sector reform in the context of a constitutional transition. The objective of the meeting was to compare the experiences of constitutional transition and security sector reform in different countries and contexts, and working together as a team of experts, to extract principles and lessons from the collective experience of these countries’ transitions.