As the geopolitics of the twenty first century proceed to evolve and take shape, most significantly as pursued by the American insular superpower, global implications still remain opaque. Geopolitical theory allows for more transparency as it helps in observing continuities in US strategy and, in forming expectations about changing tactics and policies in the service of its durable strategic international and global concerns. It would further help offer deeper insights into how American decision-makers are likely to think and act in the post-Cold War era, and in explaining, understanding, and possibly reading and predicting U.S policies into the near future. It may then be possible to proceed to assess global implications and reactions of different actors in different regions of the World, particularly the Middle East and the Eurasian Heartland, to U.S constant parameters and changing variables, and perhaps observe early and subtle shifts in policy and political alignments as a result.