Paul Osman from Under Armour and Ana Medina from Gremlin presented at Chaos Conf 2019, discussing the implementation and benefits of Chaos Engineering in organizations. Chaos Engineering involves deliberately introducing controlled disruptions to systems to improve their resilience, emphasizing both technical and human aspects of system reliability. Ana Medina shared her journey into Chaos Engineering, highlighting her experiences at Uber, where internal tools like You Destroy were developed to test the resilience of microservices on bare metal infrastructure. Paul Osman discussed how Under Armour uses Chaos Engineering to prepare for high-traffic periods, such as New Year's, by conducting controlled game days to test system responses and improve documentation and processes. Both speakers emphasized the importance of Chaos Engineering as part of incident lifecycle management, using it to enhance learning and system robustness. The talk highlighted the value of Chaos Engineering in fostering a culture of continuous improvement and resilience, advocating for its integration into both technical and organizational practices.