Robert M. Farley and Davida H. Isaacs’s contribution to both fields of international relations and intellectual property lies in their ability to explain the legal system that results in the diffusion of military technology in some cases. The diffusion of military technology is explained in the book by the difference in political factors, organizational structures, or protective security frameworks. The legal explanation for the commonality of some military technologies is not well understood but is a significant factor for explaining why some military technologies are more accessible and widespread than others. Further, their work is of contemporary importance noting the monolithic nature of the global defense industry, consisting of public and private partnerships as well as collaborative approaches to high end military technologies that require complex legal frameworks.