Rhodesia's early counter-insurgency successes were undone by political shifts in the guerrillas' favour overseas. The April 1974 Carnation Revolution in Lisbon led to Mozambique's transformation over the next year from a Portuguese territory friendly to Smith's government into a communist state openly allied with ZANU. Wilson and Labour returned to power in the UK in March 1974. Portugal's withdrawal made Rhodesia hugely dependent on South Africa, but Smith still insisted that he held a strong position. "If it takes one year, five years, ten years, we're prepared to ride it out," he told the RF congress on 20 September 1974. "Our stand is clear and unambiguous. Settlement is desirable, but only on our terms."