WhenBritain declared war onGermany on September 3, 1939, theUnited Party split.Hertzog wanted South Africa to remain neutral, butSmuts opted for joining the British war effort. Smuts’s faction narrowly won the crucial parliamentary debate, and Hertzog and his followers left the party, many rejoining theNational Party faction Malan had maintained since 1934. Smuts then became theprime minister, and South Africa declared war on Germany.

South Africa made significant contributions to the Allied war effort. Some 135,000 white South Africans fought in the East and North African and Italian campaigns, and 70,000 Blacks and Coloureds served as laborers and transportdrivers. South African platinum, uranium, and steel became valuable resources, and, during the period that theMediterranean Sea was closed to theAllies,Durban andCape Town provisioned a vast number of ships en route from Britain to the Suez.

The war proved to be an economic stimulant for South Africa, although wartime inflation and lagging wages contributed to social protests and strikes after the end of the war. Driven by reduced imports, the manufacturing and service industries expanded rapidly, and the flow of Blacks to the towns became a flood. By the war’s end, more Blacks than whites lived in the towns. They set up vast squatter camps on the outskirts of the cities and improvised shelters from whatever materials they could find. They also began to flex their political muscles. Blacksboycotted aWitwatersrand bus company that tried to raise fares, they formedtrade unions, and in 1946 more than 60,000 Black gold miners went on strike for higher wages and improved living conditions.

Although the 1946 strike was brutally suppressed by the government, whiteintellectuals did propose a series of reforms within thesegregation framework. The government and private industry made a fewconcessions, such as easing the industrial color bar, increasing Black wages, and relaxing thepass laws, which restricted the right of Blacks to live and work in white areas. The government, however, failed to discuss these problems with Black representatives.

Afrikaners felt threatened by the concessions given to Blacks and created a series of ethnic organizations to promote their interests, including an economic association, a federation of Afrikaans cultural associations, and theAfrikaner Broederbond, asecret society of Afrikaner cultural leaders. During the war many Afrikaners welcomed the early German victories, and some of them even committed acts ofsabotage.

The United Party, which had won the general election in 1943 by a large majority, approached the 1948 election complacently. While the party appeared to take anambiguous position on race relations, Malan’s National Party took an unequivocally pro-white stance. The National Party claimed that the government’s weakness threatenedwhite supremacy and produced a statement that used the wordapartheid to describe a program of tightened segregation anddiscrimination. With the support of a tiny fringe group, the National Party won the election by a narrow margin.