For Shiites, the elections are a way to inherit by peaceful means power that was long monopolized by Sunni Arabs, who make up about a fifth of the country's population. For some Shiites, the elections will undo mistakes made when Iraq was founded. In 1920, the Shiite clergy led a revolt against the British occupation after World War I. Once it was put down, the clergy kept up their opposition, rejecting Shiite participation in elections that followed and discouraging a role in the government and its institutions, which were soon dominated by Sunnis.