The SmartSat CRC (SmartSat) is a collaborative consortium of industry and research organisations that will propel Australia’s space industry forward and generate transformative technologies to support sector needs. It will support the development of new capabilities that will position Australia as a leader in niche areas of intelligent satellite systems, advanced communications and earth observation driven data analytics. The technologies developed by SmartSat are being targeted for their potential for multi-use application across a wide range of sectors, including Defence and National Security. This document provides snapshot of key industry needs and research focus areas as well as a foundation for SmartSat to develop and implement solutions based on the principals and objectives. The priority areas identified in this document were developed by the SmartSat Defence and National Security End User Advisory Board (EUAB). This document will be used by SmartSat to guide the development of a project focused sector plan and establish project priorities. The project plan will take into consideration the impact of projects, cross-sector collaboration, leverage other initiative and programs, returns on investments, and returns and benefits to project partners, industry and academia as a whole. This document and the proceeding project plan may also be used by SmartSat partner organisations to help guide development of project proposals and identify priority areas for further research and development.