much of the former colonial armed forces, began a counter-attack on 20 August. Unable to control the conflict with the few Portuguese troops that he had at his disposal, Lemos Pires decided to leave Dili with his staff and transfer the seat of the administration to Atauro Island (located 25 km off Dili) in late August 1975. At the same time, he requested Lisbon to send military reinforcements, the request being responded with the sending of a warship, the NRP Afonso Cerqueira, which arrived in Portuguese Timorese waters in early October. On 28 November 1975, Fretilin unilaterally declared the colony's independence, as the Democratic Republic of East Timor (República Democrática de Timor-Leste). Representatives of UDT and APODETI, encouraged by Indonesian intelligence, declared that the territory should become part of Indonesia. On 7 December 1975, the Indonesian Armed Forces launched an invasion of East Timor. At 3:00 a.m., the two Portuguese corvettes, the NRP João Roby and NRP Afonso Cerqueira, anchored near Atauro, detected on the radar a high number of unidentified air and naval targets approaching. They soon identified the targets as Indonesian military aircraft and warships, which initiated an assault against Dili. Lemos Pires and his staff then left Atauro, embarked on the Portuguese warships, and headed to Darwin in the Northern Territory of Australia. The João Roby and Afonso Cerqueira were ordered to continue patrolling the waters around the former Portuguese Timor, in preparation of possible military action to respond to the Indonesian invasion, constituting the naval task force UO 20.1.2 (latter renamed FORNAVTIMOR). Portugal sent a third warship to the region, the NRP Oliveira e Carmo, which arrived on 31 January 1976 and replaced the NRP Afonso Cerqueira. The Portuguese warships would continue in the region until May 1976, when the remaining NRP Oliveira e Carmo left, going back to Lisbon, at a time when a military action to expel the Indonesian forces was clearly seen as unviable. On 17 July 1976, Indonesia formally annexed East Timor, declaring it as its 27th province and renaming it Timor Timur. The United Nations, however, did not recognise the annexation, continuing to consider Portugal as the legal Administering Power of what under international law was still Portuguese Timor. Following the end of Indonesian occupation in 1999, and a United Nations administered transition period, East Timor became formally independent 20 May 2002. Currency The first Timorese currency was the Portuguese Timorese