Following the military coup in Portugal in 1974 the Portuguese began to withdraw from Timor, the subsequent internal unrest and fear of the communist Fretilin party led to an invasion by Indonesia, who opposed the concept of an independent East Timor. In 1975, East Timor was annexed by Indonesia and became known as "Timor Timur" or 'Tim-Tim' for short. It was regarded by Indonesia as the country's 27th province, but this was never recognised by the United Nations (UN) or Portugal.