Iran–Iraq border
…the Shatt al-Arab. In retaliation Iraq supported Arab separatists in Iran's oil-rich Khuzestan province, with Iran supporting Kurdish rebels in Iraq. A peace agreement was signed on 6 March 1975 in Algiers in which both parties pledged to further demarcate the border, both on land and in the Shatt al-Arab, based upon the Erzurum Treaty and Constantinople…