Science and technology play an increasingly important role in supporting the defence and security industries. Mathematics is fundamental to these two disciplines, providing a framework for understanding and solving the varied and complex problems faced, and to model systems and scenarios. These models are then used to estimate system performance, find weaknesses in real systems, and suggest improvements. This year we are delighted that keynote presentations will be given by UK MOD Chief Scientific Advisor Professor Dame Angela McLean and Dr Ned Allen, Lockheed Martin’s Chief Scientist and Corporate Senior Fellow.