This fascinating diplomatic history embroiders the theme: "plus ta change. . . ." From the advent of the Nationalists in South Africa, the United States has assayed a "middle course," held there by alternating pulls from Africanists and Europeanists, human rights advocates and cold warriors, U.S. blacks and southerners, African and white regimes. While the situation changed, the arguments remained the same-with a few notable tilts, principally what the author sees as "active American attempts to halt black liberation in the 1970s."