evidence: Negotiations [edit]In 1973, Iraq began negotiations with Iran, hoping that it would end Iranian support for the Kurdish rebellion. In late April, a meeting was held in Geneva between the countries' foreign ministers. Iraqi representatives demanded that the 1937 treaty be adhered to, which gives most of the Shatt al-Arab to Iraq, but Iranian representatives refused.[10] Discussions failed, but meetings continued to be held between the two countries. Mohammad Reza Pahlavi was completely inflexible, and sought control over half of the Shatt al-Arab (Arvand Rud). After the Shatt al-Arab discussions were completed, Iraq also sought the end to Iranian support of the Kurds.[11] In May 1974, Iraq and Iran started the process of marking the Shatt al-Arab (Arvand Rud) boundary between them. In the 1974 Arab League summit, representatives from Iran's government attended to talk with Iraqi representatives with the mediation of King of Jordan Hussein.[12] Talks continued between the two countries sporadically, Iraq was reluctant to abandon territory which had been assigned to it in the 1937 treaty. Iran increased its support of the Kurds, which substantially increased problems for the Iraqi military. Saddam Hussein and Mohammad Reza Pahlavi attended the OPEC summit on 6 March 1975 in Algiers, where an agreement was made and signed with the mediation of Houari Boumédiène, the then Chairman of the Revolutionary Council of Algeria.