Science and technology play an increasingly important role in equipping and supporting the armed forces. Mathematics is fundamental to these disciplines, providing a framework for understanding and solving the varied and complex problems faced, and is used to model military systems and scenarios. These models can be used to estimate system performance, suggest improvements, or find weaknesses of real systems. This conference brings together a wide variety of mathematical methods with defence and security applications. The programme will include keynote speakers, contributed presentations and poster sessions as well as refreshment breaks for informal discussions. It is intended for mathematicians, scientists and engineers from industry and academia, as well as government and military personnel who have an interest in how mathematics can be applied to defence problems.