Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The National Renewal Alliance Party or Aliança Renovadora Nacional (ARENA) was a conservative political party that existed in Brazil between 1966 and 1985. It was the official party of the military that ruled Brazil from 1964 to 1985. Up to 1965, there were three main parties in Brazil: the left-populist Brazilian Labour Party (PTB), the liberal Social Democratic Party (PSD) and the conservative National Democratic Union (UDN). In 1964, the government of President João Goulart was overthrown by a military coup d'etat, but in contrast to other Latin American dictatorships, the Brazilian military-controlled government did not abolish Congress. Instead, in 1965, the government banned all existing political parties and created a two-party system. Most of the politicians from PSD and UDN formed the ARENA, the government party, while most from the PTB and somefrom the PSD formed the Brazilian Democratic Movement (MDB), the opposition.