Iraq is located in the Middle East between the Tigris and Euphrates Rivers. It has borders with several countries and most of its land consists of desert, though the river areas are fertile. The capital is Baghdad. Iraq has a parliamentary democracy established after the US invasion in 2003 overthrew Saddam Hussein's dictatorship. The economy relies heavily on oil exports, and the country suffers from violence between its major religious groups, Sunni and Shia Muslims and Kurds.