Beira, Mozambique until Mozambique gained its independence from Portugal in 1975. Beira is located on the Mozambique Channel, an arm of the Indian Ocean located between Madagascar and Mozambique. The city sits north of the mouth of the convergence of two major rivers of Mozambique: the Buzi River and the Pungwe River. The Buzi crosses across Manica and Sofala provinces to form a wide estuary. The Pungwe crosses from the Eastern Highlands of Zimbabwe also through Manica and Sofala provinces to Beira. The city was established in 1890 by the Portuguese and soon supplanted Sofala as the main port in the Portuguese-administered
People's Republic of Mozambique preceding independence, FRELIMO consolidated its presence in the south and in urban areas. This was done through the work of militant groups ("grupos dinamizadores" or "dynamic groups"), which also included Mozambicans of Portuguese origin. The period prior to independence was also marked by the settling of scores and public trials against members FRELIMO who had strayed from the FRELIMO party line. "Traitors," "reactionaries," and real or suspected agents of the U.S. Central Intelligence Agency or PIDE, the Portuguese security agency. The Central Committee of FRELIMO adopted the constitution of the People's Republic of Mozambique on June 20, which established that