Field Marshal Jan Christiaan Smuts  (24 May 1870 - 11 September 1950) was a prominent South African and British Commonwealth statesman, military leader and philosopher. In addition to holding various cabinet posts, he served as prime minister of the Union of South Africa from 1919 until 1924 and from 1939 until 1948. Although Smuts had originally advocated racial segregation and opposed the enfranchisement of black Africans, his views changed and he backed the Fagan Commission's findings that complete segregation was impossible. Smuts subsequently lost the 1948 election to hard-line Afrikaners who created apartheid.

The Union of South Africa was born, and the Afrikaners held the key to political power, as the majority of the electorate. Although Botha was appointed prime minister of the new country, Smuts was given three key ministries: Interior, Mines, and Defence. Undeniably, Smuts was the second most powerful man in South Africa. To solidify their dominance of South African politics, the Afrikaners united to form the South African Party, a new pan-South African Afrikaner party.  The harmony and cooperation soon ended. Smuts was criticised for his overarching powers, and the cabinet was reshuffled. Smuts lost Interior and Mines, but gained control of Finance. This was still too much for Smuts' opponents, who decried his possession of both Defence and Finance: two departments that were usually at loggerheads. At the 1913 South African Party conference, the Old Boers (Hertzog, Steyn, De Wet), called for Botha and Smuts to step down. The two narrowly survived a confidence vote, and the troublesome triumvirate stormed out, leaving the party for good.  With the schism in internal party politics came a new threat to the mines that brought South Africa its wealth. A small-scale miners' dispute flared into a full-blown strike, and rioting broke out in Johannesburg after Smuts intervened heavy-handedly. After police shot dead twenty-one strikers, Smuts and Botha headed unaccompanied to Johannesburg to resolve the situation personally. Facing down threats to their own lives, they negotiated a cease-fire. But the cease-fire did not hold, and in 1914, a railway strike turned into a general strike. Threats of a revolution caused Smuts to declare martial law. Smuts acted ruthlessly, deporting union leaders without trial and using Parliament to absolve him and the government of any blame retroactively. This was too much for the Old Boers, who set up their own National Party to fight the all-powerful Botha-Smuts partnership.

What were they mining?