Advances in sensors, communications, computing, nano- and bio-technologies, along with new strategies and operational concepts, challenge our policy-making capacity. The Spring 2016 issue of Connections presents the Emerging Security Challenges Working Group of the PfP Consortium and reflections of some of its members on the security and policy implications of technological developments. The second group of papers complements these reflections, focusing on what is now called "hybrid warfare," non-state actors and cyber operations, in particular in the context of the ongoing Russian-Ukrainian conflict.