 The Federation of South Arabia collapsed, and Southern Yemen became independent as the People's Republic of South Yemen.The NLF, with the support of the army, attained total control of the new state after defeating the FLOSY and the states of the former Federation in a drawn out campaign of terror.In June 1969, a radical Marxist wing of the NLF gained power and changed the country's name to the People's Democratic Republic of Yemen (PDRY) on 1 December 1970.