Álvaro Barreirinhas Cunhal (Portuguese pronunciation: [ˈaɫvɐɾu kuˈɲaɫ]; 10 November 1913 – 13 June 2005) was a Portuguese communist revolutionary and politician. He was one of the major opponents of the dictatorial regime of the Estado Novo. He served as secretary-general of the Portuguese Communist Party (PCP) from 1961 to 1992. He was one of the most pro-Soviet of all Western Europe communist leaders, often supporting the Soviet Union's foreign policies, including the Soviet invasion of Czechoslovakia in 1968. During the 1970s, Cunhal supported Soviet leader Leonid Brezhnev’s political agenda, and strongly opposed Mikhail Gorbachev’s perestroika policies in the 1980s.