From the Document: "[I]t would seem that the preservation of sovereignty is a task that recognizes that challenges to U.S. sovereignty are no longer discouraged by either geography or political boundaries. Distance no longer provides assurance of non-involvement. It has been demonstrated that it is not possible to keep threatening conditions or 'bad guys' at a safe distance merely because of their physical location. Focusing issues of sovereignty on a grid of static political borders is insufficient. Measures of effectiveness, based on securing fixed geographical lines, are difficult to form and explain, and are almost impossible to achieve. At the same time, it is surely an exaggeration to characterize traditional borders as merely speed bumps to globalization and the movement of populations. But it is necessary for countries and coalitions of countries to decide what roles borders will play moving into the future."
United States Special Operations Command Library: https://jsou.libguides.com/