Developments relating to the Islamic Awakening in the Middle East, especially in 2011, influenced and intensified, more than ever, the efforts made by the Obama Administration to securitize nuclear activities of the Islamic Republic of Iran. In fact, these activities have always been one of the major preoccupations for the foreign policy the USA. Obama followed up seriously on what George Bush did, especially during his second term. The approach of both US presidents, predicated on considering the Iranian nuclear energy programme as a threat against the US and its interests, has its root in the security-oriented approach, and its adverse consequences, towards the Iran. Therefore, a major part of Iran's foreign policy has been influenced by nuclear activities. This paper proposes to consider the process of securitizing Iran's nuclear file, especially under Obama's administration, on the basis of the conceptual pattern provided by the Copenhagen School and from

speech act and action perspectives. This paper seeks also to answer the question as to what methods Obama has used to securitize Iran's nuclear file. It presupposes that the attempts to isolate Iran have been made through speech act and actions.

Keywords: Securitizing, Copenhagen School, threat, I R Iran's nuclear activities, Obama foreign policy, speech act, action, soft policy