Military history of South Africa during World War II Westminster with its head of state being the British king, the South African Prime Minister on 1 September 1939 was J.B.M. Hertzog – the leader of the pro-Afrikaner and anti-British National Party. The National Party had joined in a unity government with the pro-British South African Party of Jan Smuts in 1934 as the United Party. Hertzog's problem was that South Africa was constitutionally obligated to support Great Britain against Nazi Germany. The Polish-British Common Defence Pact obligated Britain, and in turn its dominions, to help Poland if attacked by the Nazis. When Adolf Hitler's forces attacked Poland on 1
Prime Minister of Portugal was sworn in on 24 September 1834, as "Presidente do Conselho de Ministros" (President of the Council of Ministers). In 1911, the official title of the prime minister became "Presidente do Ministério" (President of the Ministry). In 1933, it became again "Presidente do Conselho de Ministros". The present title "Primeiro-Ministro" (Prime Minister), attributed to the head of the Government of Portugal, was officially established by the Constitution of 1976 after the revolution of 25 April 1974 The incumbent Prime Minister of Portugal is António Costa, who took office on 26 November 2015 as the 13th Prime Minister of the Third