Vilas Veeraraghaven's presentation at Chaos Conf 2018 focused on transitioning from chaos engineering to resilience engineering at Walmart, emphasizing the importance of preparing systems for resilience in the face of chaos rather than just introducing chaos. Drawing from his experience at Netflix, Veeraraghaven shared how Walmart has been implementing a structured approach to enhance system resilience, involving multiple levels that progressively integrate automation and testing to reduce support costs and revenue losses. The initiative encourages teams to develop disaster recovery playbooks, conduct failure injection tests, and use tools like Gremlin to simulate failures and refine their responses. The effort has fostered a culture of accountability and collaboration within Walmart, leading to the establishment of a community of chaos practitioners who share best practices and support each other in achieving higher levels of resilience. Despite some challenges, such as a significant outage due to a storm in Texas, the approach has empowered teams, reduced silos, and improved overall system resilience, with plans to further automate and potentially open-source the developed tools.