The increasing magnitude and frequency of natural disasters put growing pressure on disaster risk reduction (DRR). DRR strategies have traditionally relied upon risk identification as the first step in assessing disaster risks, but they are incapable of planning for all risks that a community will face. In most countries, current DRR strategies focus on prevention and mitigation of identifiable risks. They seek to build specified resilience — resilience to known risks. On the contrary, there are no strategies that aim to build general resilience to address unexpected risks. This is also the case for South Australia, where this study took place. This chapter explains the importance of broadening the focus of DRR strategies beyond specified resilience to also include general resilience. Starting from a sense-making framework on resilience to known and unexpected risks, focus group discussions were facilitated to assess systemic conditions that have an impact on community resilience to unexpected risks, that is, those that most people are not prepared to face. System of Systems (SoS) and complex systems thinking (CST) were used to explore potential to integrate systemic approaches to current DRR strategies. The study involved community members, the Australian Red Cross and State Government agencies responsible for disaster mitigation and prevention in South Australia. Systemic factors residing outside the scope of the investigated DRR SoS highlighted the need for “feedback policies” that take into account modern community routines and new characteristics of social relations dynamically. Key recommendations and insights have local, national and international relevance.