The changing policy of the U.S. in Afghnistan after the September 11th. Of 2001 (From Offensive realism point of view)

The occurance of September 11th. Of 2001 is regarded as a turning point in the international policy.The U.S, in reacting toward it, by which even today world is affected, took some practical actions against terrorism.The focus of the U.S. attention has been on fighting against terrorism in Afghanistan. In this trend, its first reaction to that caused its military presence in Afghanistan which has resulted in the start of state-nation making, democracy establishment and also supporting the governance process and fortifying stability ans security.In recent years, the U.S. anti-terrorism policies have been variated from front war to peace prioritization. As, the project of anti-terrorism combat and establishing peace in Afgjanistan and the region have not finished yet,this question is raised that what have been the basics of the U.S. changing foreign policy in Afghanistan and their effects: To answer this question, it seems that the systematic tendency and power balancing in the region and the world have directed the U.S. policy; So, its longstanding presence in Afghanistan, based on the region' world conditions and priorities, should be studied from the U.S. security and policy strategies points of view.This study, by using some documental and library sources and a descriptive-analytic method, tries to explain the tie between the systematic order and the U.S. power balancing in the region and the world with its reversing foreign policy in Afghanistan.The research findings show that the Russian recen re-empowerment and China emergence as agreat power have affected the U.S foreign policy in Afghanistan.The systematic requirements have been toward the conditions of anti-terrorism actions in Afgjanistan and the region.