General James Barry Munnik Hertzog KC (3 April 1866 – 21 November 1942), better known as Barry Hertzog or J. B. M. Hertzog, was a South African politician and soldier. He was a Boer general during the Second Boer War who served as the third prime minister of the Union of South Africa from 1924 to 1939. Throughout his life he encouraged the development of Afrikaner culture, determined to prevent Afrikaners from being influenced by British culture.