Query: What revolutionary group sought to overthrow the president of Sudan?
Context: Gaddafi was later infuriated when Egypt and Syria planned the Yom Kippur War against Israel without consulting him, and was angered when Egypt conceded to peace talks rather than continuing the war. Gaddafi become openly hostile to Egypt's leader, calling for Sadat's overthrow, and when Sudanese President Gaafar Nimeiry took Sadat's side, Gaddafi by 1975 sponsored the Sudan People's Liberation Army to overthrow Nimeiry. Focusing his attention elsewhere in Africa, in late 1972 and early 1973, Libya invaded Chad to annex the uranium-rich Aouzou Strip.