the Linggadjati Agreement, a ceasefire agreement in effect since 14 October 1946, the Dutch commenced a military action, Operation Product, which led to deteriorating security conditions in Malang. The East Java provincial government moved again to Blitar. This military action ended after the Renville Agreement. However, this agreement reduced the territory controlled by the East Java provincial government. The Netherlands then turned the areas under its control into new federal states, the State of Madura and the State of East Java. Amid the difficulties faced by the government of Indonesia, a left-wing opposition group, Front Demokrasi Rakyat (FDR, People's Democratic Front) launched rebellion in Madiun on 18 September 1948. However, eventually this revolt was defeated by the Indonesian Army. On 19 December 1948, the Dutch launched Operation Kraai. Blitar, the seat of the East Java provincial government was attacked by the Dutch. Governor Moerdjani and his staff were forced to flee and joined the guerrillas on the slopes of Mount Wilis. Operation Kraai ended after the Roem–Van Roijen Agreement on 7 May 1949. Following the Dutch–Indonesian Round Table Conference, at which the Netherlands agreed to transfer sovereignty to the United States of Indonesia, the Dutch withdrew its troops from East Java. East Java changed its status from a province into a state. However, on 25 February 1950, this was dissolved and became part of the territory of the Republic of Indonesia. The State of Madura also decided to join Indonesia. Contemporary era Along with rapid growth of urbanization in East Java, the governments could not satisfy the population's needs for affordable housing, which led to the building of shanty towns along the rivers and rail tracks. Today, the shanty towns still exist; although some have been transformed into “better” housing. East Java has twice hosted the National Sports Week (PON), the 7th (1969) and 15th PONs (2000), and became the overall champions in 2000 and 2008. Geography East Java province borders the Java Sea in the north, the Strait of Bali in the east, and the Indian Ocean in the south, as well as the Central Java province in the west. The length of the east–west stretch of about 400 km. The width of the stretch of the north–south in the west about 200 km, but in the eastern part of narrower by about 60 km. Madura is the largest island in East Java, separated from the mainland Java by