David Levy is retired US Navy Commander and Diplomat. He was the Director for Theater Security Cooperation for US Naval Forces Central Command located in Bahrain and he was the US Air & Navy Attaché in Tunis, Tunisia. David’s thesis draws a page from classical antiquity. We have inherited a foreign policy strategy that better describes and predicts client-patron security relationships and small state conflicts than any current theory. His thesis introduces, describes, and explains the Client-Patron System of International Relations (CPSIR) of Ancient Rome and compares it with three contemporary Realist Systems: Preponderance Theory, Offshore Balancing, and the Hegemonic Stability Theory. Using two contemporary case studies, the modern Middle-East and Asia-Pacific, the descriptiveness and predictiveness of the four theories will be put to the test. David received his MA in National Security Affairs from the Naval Postgraduate School and his BS in Business from NY Maritime College.