Summary
The fundamental turning point in American policy towards the Iran was the success of the Islamic revolution in Iran 1979 . Since than U S policy has been hostile to Iran . After the events 11 September 2001 , there was an American idea of dialogue with some countries opposed to US policy , including Iran . In 2004 the United States launched the Greater Middle East project , which contain a range of political , economic and cultural proposals for the region , all of which were in the interest of the United States and ( Israel ) , which Iran opposed . The failure of U S projects in region prompted the United States to agree with Iran on the nuclear file . On 8 May 2018 U S President Donald Trump officially announced that the United States was out of the nuclear agreement with Iran . Then on 5 November the United States imposed a package of sanctions on the Islamic Republic of Iran . But the U S withdrawal from the agreement and the imposition of sanctions has been rejected by most of the word , which means that the policy of U S containment will continue .