Answer
Somalia's vanguard party under Barre's rule in 1976 was the Somali Revolutionary Socialist Party (SRSP). The SRSP was founded in 1976 as a merger of the Somali Youth League (SYL) and the Somali National Congress (SNC). The SRSP was the only legal political party in Somalia from 1976 until 1991, when it was disbanded after Barre's overthrow. The SRSP was a Marxist-Leninist party that promoted a socialist ideology.