Iran but not with the United States, and not with Israel—a state which Iran's government has derecognized since the 1979 Revolution. Among Muslim nations, Iran has severe relationship with Saudi Arabia due to different political and Islamic ideologies while Iran is a Shia Islamic Republic and Saudi is a conservative Sunni monarchy. Regarding the Israeli–Palestinian conflict, the government of Iran has recognized Jerusalem as the capital of the State of Palestine, after Trump recognized Jerusalem as the capital of Israel. On 14 July 2015, Tehran and the P5+1 came to a historic agreement ("Joint Comprehensive Plan of Action") to end economic
Armed Forces of the Islamic Republic of Iran large amounts of weapons to Iran until the 1979 Islamic Revolution. After the Islamic revolution, Iran found itself severely isolated and lacking technological expertise. Because of economic sanctions and a weapons embargo put on Iran by the United States, it was forced to rely on its domestic arms industry for weapons and spare parts, since there were very few countries willing to do business with Iran. The Islamic Revolutionary Guards were put in charge of creating what is today known as the Iranian military industry. Under their command, Iran's military industry was enormously expanded, and with the Ministry of Defense