Portugal during World War II
Upon the start of World War II in 1939, the Portuguese Government announced on 1 September that the 600-year-old Anglo-Portuguese Alliance remained intact, but that since the British did not seek Portuguese assistance, Portugal was free to remain neutral in the war and would do so. In an aide-mémoire of 5 September 1939, the British Government confirmed the understanding. As Hitler's occupation swept across Europe, neutral Portugal became one of the Continent's last escape routes. Portugal managed to remain neutral throughout the war despite extraordinary pressures from both sides, notably over the strategically located Azores islands and over the wolfram (tungsten) trade.
António de Oliveira Salazar
With the "Estado Novo" enabling him to exercise vast political powers, Salazar used censorship and a secret police to quell opposition, especially that related to the Communist movement. He supported Francisco Franco in the Spanish Civil War, and played a key role in keeping Portugal and Spain neutral during World War II. During his rule, despite the authoritarian regime, Portugal took part in the founding of important international organizations. Portugal was one of the 12 founding members of the North Atlantic Treaty Organisation (NATO) in 1949, joined the European Payments Union in 1950, and was one of the founding members of the European Free Trade Association (EFTA) in 1960, and a founding member of the Organisation for Economic Co-operation and Development in 1961. Under his rule Portugal also joined the General Agreement on Tariffs and Trade in 1962, and began the Portuguese Colonial War. The doctrine of Pluricontinentalism was the basis of his territorial policy, a conception of the Portuguese Empire as a unified state that spanned multiple continents.