The conclusions close the manuscript and make four points. First, they review the macro-level observational expectations tested in Part II, and how my findings, obtained through a triangulation of different techniques, allow for a comprehensive picture of how war affected state formation throughout the entire region. Second, they bring together all case studies in Part III, noting how the historical evidence collected fits the expectations of the theory at a micro-level—e.g., considering the behavior of individual actors and the effects of narrow events like battles within wars—and does so with out-and-out consistency—i.e., case by case, almost without exception. Third, they reflect upon the scope of the theory, discussing many other cases that could be explained by the long-term effects of war outcomes. This discussion covers many regions and time periods, showing that classical bellicist theory not only can travel, but can also solves logical problems and empirical puzzles highlighted by previous scholarship. Finally, the conclusions suggest many lines of enquiry for future research that the book leaves open.