19. Chapter 2: Defining Our Risks and Threats; outlines the methodology used to identify and prioritise the key risks and threats the Region is likely to face now and in the future. 20. Chapter 3: Advancing Our Regional Priorities; outlines the key risks and threats the Region faces. The common and shared risks and threats to regional security are prioritised into four (4) tiers based on a combination of the likelihood of the risk or threat arising and its potential impact. The Risk and Threat Assessment also took account of our current state of preparedness for each risk and threat. 21. Chapter 4: Strategic Approach; details the mechanisms and policies to manage the risks and threats. 22. Chapter 5: Implementation and Monitoring; presents a brief summary of the implementation and monitoring processes of the Strategy. 12