It was in 1974 that a coup in Portugal resulted in the beginning of decolonisation for Portuguese Timor, and shortly afterwards the Governor Mário Lemos Pires announced plans to grant the colony independence. Plans were drawn up to hold general elections with a view to independence in 1978. During most of 1975 a bitter internal struggle occurred between two rival factions in Portuguese Timor. Gusmão became deeply involved with the Fretilin faction, and as a result he was arrested and imprisoned by the rival faction the Timorese Democratic Union (UDT) in mid-1975. Taking advantage of the internal disorder, and with an eye to absorbing the colony, Indonesia immediately began a campaign of destabilisation, and frequent raids into Portuguese Timor were staged from Indonesian West Timor. By late 1975 the Fretilin faction had gained control of Portuguese Timor and Gusmão was released from prison. He was given the position of Press Secretary within the Fretilin organisation. On 28 November 1975, Fretilin declared the independence of Portuguese Timor as "The Democratic Republic of East Timor", and Gusmão was responsible for filming the ceremony. Nine days later, Indonesia invaded East Timor. At the time Gusmão was visiting friends outside of Dili and he witnessed the invasion from the hills. For the next few days he searched for his family.