...U.S. missteps in the region date to 1977, when policymakers tacitly — and foolishly — encouraged Somalia to take advantage of political instability in the Ethiopian capital and grab control of Ethiopia's Somali-inhabited Ogaden region.
The move backfired when Soviet and Cuban troops rushed in to defend the Marxist regime in Addis Ababa, turning Ethiopia into Moscow's staunchest ally in Africa. In response, Washington armed Mohamed Siad Barre's thugocracy in Somalia.
Dragged Back Into Somalia (Los Angeles Times) August 13, 2006