Ogaden War

The 1977–1978 war between Somalia and Ethiopia over the Ogaden region ended with Somalia’s withdrawal after Soviet- and Cuban-backed Ethiopian forces prevailed.

Western Somali Liberation Front: A Somali-backed insurgent organization that sought to unite the Ogaden with Somalia. Its campaign helped Somalia turn a border dispute into an armed struggle inside Ethiopia.
Ogaden: A region of eastern Ethiopia inhabited largely by ethnic Somalis. Control of this region was the central territorial issue in the war.
Siad Barre: Somalia’s president from 1969 until 1991, who led the country during the Ogaden War. His government ordered the invasion and rejected Soviet alignment after Moscow backed Ethiopia.
Soviet–Somali split: The breakdown of the Soviet Union’s alliance with Somalia in the late 1970s. Moscow’s support for Ethiopia prompted Somalia to expel Soviet personnel and seek new allies.
Somali National Army: The armed forces of Somalia under Siad Barre’s government. Its 1977 invasion carried Somalia’s territorial claim into conventional war.
Greater Somalia: A nationalist project to unite Somali-inhabited territories across the Horn of Africa. Somalia’s claim to the Ogaden drew on this vision of national unification.
Mengistu Haile Mariam: The Ethiopian military ruler who led the Derg and governed Ethiopia from 1977 to 1991. He secured Soviet and Cuban support for Ethiopia’s counteroffensive.
Soviet–Ethiopian alliance: The strategic partnership between the Soviet Union and Ethiopia formed during the Ogaden War. The alliance supplied Ethiopia with weapons, advisers, and Cuban military support.
Ethiopian National Defense Force: The armed forces of Ethiopia, known by this name in the modern era. Ethiopian forces regrouped with foreign assistance and drove Somali troops from the Ogaden.
Somali irredentism: A political movement seeking to unite Somali communities divided among several states. It supplied the ideological basis for Somalia’s claim beyond its recognized borders.

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