Support to Resistance and Resilience (SRR) is focused on people— both for the populations who are building resilience and resistance skills, and on the SOF professionals who advise and assist those populations. Understanding, defining, and measuring the will to resist is a complex topic. What is the relationship between the people and their will to resist? What is SOF’s role in shaping the will to resist? Is there a difference between will to win and will to fight? Should capturing a willingness to resist be focused on the group or individual level? How can you measure a given group or individual’s will to resist, especially when that will is likely to vary over time? If we can better measure will to resist, might that inform where the next resistance movement will be likely to occur?