Like the Profession of Arms, National Security Policy and Strategy are briefly introduced at the most junior levels. While some personnel will engage in this area sooner, the majority of Defence become increasingly involved in this field from JPME Level 3 onwards. By Level 4, this topic becomes a major area of study. It gives Defence personnel an understanding of the whole of Defence as a department, the broader security community and other government agencies. It examines the systems and support for strategic logistics and sustainment. It addresses Defence relationships and how we communicate with the government, and it examines strategy from awareness level to synthesising and generating strategic direction. Topics include, but are not limited to: