Established in 1971, the federation of seven emirates – Abu Dhabi, Ajman, Dubai, Fujairah, Ras Al-Khaimah, Sharjah and Umm Al-Quwain is economically liberal and progressive, but remains politically conservative. Ultimate control is held by the emirate rulers, led by oil-rich, politically savvy Abu Dhabi and regional/global commercial hub Dubai. The federal government has legislative and executive jurisdiction over sectors including foreign affairs, security, defence, education, health, currency, electricity and immigration. Each emirate retains considerable economic independence and control over mineral rights and revenues.