Open primaries are where voters don't have to declare party affiliation.
Closed primaries are for affiliated party members.
In 1953 when prime minister Mossadeq nationalized the oil industry, United States stepped in and reinstated the pro-western Sha. Mossadegh saw the Anglo-Iranian Oil as an arm of the British government regulating much of Iran's oil, pushing him to nationalize the Iranian oil industry.
Yes they do lie between both tigris and euphrates mountains