The Estado Novo (European Portuguese pronunciation: [(ɨ)ʃˈtaðu ˈnovu], lit. 'New State') was the corporatist Portuguese state installed in 1933. It evolved from the Ditadura Nacional ("National Dictatorship") formed after the coup d'état of 28 May 1926 against the unstable First Republic. Together, the Ditadura Nacional and the Estado Novo are recognised by historians as the Second Portuguese Republic (Portuguese: Segunda República Portuguesa) or Salazarist Portugal. The Estado Novo, greatly inspired by conservative and autocratic ideologies, was developed by António de Oliveira Salazar, who was President of the Council of Ministers from 1932 until illness forced him out of office in 1968.
Opposed to communism, socialism, syndicalism, anarchism, liberalism and anti-colonialism, the regime was conservative, corporatist, and nationalist in nature, defending Portugal's traditional Catholicism. Its policy envisaged the perpetuation of Portugal as a pluricontinental nation under the doctrine of lusotropicalism, with Angola, Mozambique, and other Portuguese territories as extensions of Portugal itself, it being a supposed source of civilisation and stability to the overseas societies in the African and Asian possessions. Under the Estado Novo, Portugal tried to perpetuate a vast, centuries-old empire with a total area of 2,168,071 square kilometres (837,097 sq mi), while other former colonial powers had, by this time, largely acceded to global calls for self-determination and independence of their overseas colonies.