Analysis of Military Failure and Civilization Decline Causes in Ancient Persian Governments on the basis of the Intelligent State Model (Case Study: Sassanidae, Parthians, Seleukids Dynasties)

While a government fails against military rush, it experiences last consequences of failures, from cultural field to political filed and scattering military forces. Survival of the society is affected by sagacity of government. This sagacity involves activating talents, capacities and capabilities of all people, and insurance of their effective participation; hence ensuring the equal access of people to a minimum welfare requirement, security, and enough awareness for effective participation in social areas is necessary for achieving the intelligent state. Another requirement of intelligent state is development of mutual trust and motivation for public participation that occur in the light of the social identity reinforcement and true distribution of power among all people. Because this will provide the possibility for receiving on time feedback from the society, and will increase interaction with the environment. Since three thousand years ago, a new era has begun in Iran history, and a royal empire was founded, which gradually faded away and was replaced with another one. In this research, some causes of the failure of ancient royal empires have been studied based on the intelligent state model, using the historical research method. Research findings have been drawn up as statements and have been presented as research results. These results have been used to modify the intelligent state model, and the final model has been presented.