Haile Selassie was overthrown in 1974 and the militaristic Derg Regime came to power. In 1977 Somalia invaded, trying to annex the Ogaden region, but were pushed back by Ethiopian, Soviet, and Cuban forces. In 1977 and 1978 the government tortured or killed hundreds of thousands of suspected enemies in the Red Terror. Ethiopia experienced famine in 1984 that killed one million people and civil war that resulted in the fall of the Derg in 1991. This resulted in the establishment of the Federal Democratic Republic under Meles Zenawi. Ethiopia remains highly impoverished, although its economy has become one of the world's fastest-growing. Civil conflict in the country, including the Metekel conflict and the Tigray War, are still ongoing.