Operational continuity while under sustained physical and cyber attack is possible using the concept of operational continuity. To achieve operational continuity, in addition to a synchronized and coherent defense of the information environment, data resiliency must also be used. What takes data resiliency from theory to practice is the use of minimum essential data sets on critical information. Through frequent updating of critical information and its dispersion throughout a network, robust sets of essential data can be maintained. Because network centric warfare and information superiority are important in achieving military successes, data resiliency for operational continuity is essential for achieving mission assurance. Data resiliency and operational continuity are important features within Coherent Knowledge-based Operations(trademark). Continued research and operational testing is needed to mature the concept of operational continuity, such as integrated physical and cyber continuity of operations.