Prof. Christian Bueger attended the 21st plenary of the Contact Group on Piracy off the Coast (CGPCS) held in the UN Offices in Nairobi in July 2017. Part of the plenary was a meeting of the Working Group on Operations at Sea in which the current piracy situation at sea was discussed but also emerging issues such as the spillover from the conflict in Yemen, the regulatory framework for floating armouries, as well as the recent version of the Best Management Practices. A more detailed report on the meetings is available at the CGPCS lessons learned website at www.lessonsfrompiracy.net.