Operation Manta

GUNT-controlled area in Chad until 1986/87 (light-green), "red line" on 15th and 16th latitude (1983 and 1984) and Libyan-occupied Aouzou-strip (dark-green)

Date	1983–1984
Location	Chad
Result	Indecisive

Operation Manta is the code name for the French military intervention in Chad between 1983 and 1984, during the Chadian-Libyan conflict. The operation was prompted by the invasion of Chad by a joint force of Libyan units and Chadian Transitional Government of National Unity (GUNT) rebels in June 1983. While France was at first reluctant to participate, the Libyan air-bombing of the strategic oasis of Faya-Largeau starting on July 31 led to the assembling in Chad of 3,500 French troops, the biggest French intervention since the end of the colonial era.

The French troops, instead of attempting to expel the Libyan forces from Chad, drew a "line in the sand". They concentrated their forces on the 15th parallel, the so-called "Red Line," (later moved up to the 16th parallel) to block the Libyan and GUNT advance towards the N'Djamena, thus saving the Chadian President Hissène Habré. The Libyan and rebel forces also avoided attacking across the Red Line and provoking the French. The resulting impasse led to the de facto partition of Chad, with the Libyans and the GUNT in the north and Habré and the French in central and southern Chad.

To end this stalemate, French President François Mitterrand and Libyan leader Muammar Gaddafi negotiated a mutual withdrawal of their countries' troops from Chad in September 1984. The accord was respected by the French, thus signing the end of Operation Manta, but not by the Libyans, whose forces remained in Chad until 1987 (they did, however, continue to respect the Red Line). The violation of the 15th parallel caused a renewed French intervention in Chad under Operation Epervier and the expulsion of Libyan forces from all Chad except for the Aouzou Strip the following year.

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