On 27 April 2016, United Nations Secretary-General Ban Ki-moon addressed an audience, ranging from veteran officials to young leaders, on the need for the entry into force of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). The event was held in Vienna, Austria, but was followed across the world via media coverage, livestream, and social media.
"Though we have acheived progress, our work is not over. That is why I support the mission of the Arms Control Association. It is, quite simply, the most effective and important organization working in the field today."