Volumes 2, 3, 4, and 5 contain the essential distillation of the Inquiry's efforts and form the largest portion of this summary as a result. In them we analyze deviations from the benchmark principles and themes established in Chapter 2. Our themes are interwoven in terms of both their theoretical treatment and the on-the-ground realities to which they refer. Foremost among them are leadership and accountability, which to a great extent underlie all the others. We have gone to great lengths to research, study, and set forth our understanding of how these twin pillars uphold the functioning of the military in a free and democratic society.