The conquest of the American West was part of a global process whereby settlers moved boldly into the interior of regions in temperate climates around the world, bringing their familiar crops and livestock and establishing mining and other industries. Countries such as Argentina, Australia, Canada, and New Zealand, as well as the United States, are often called “settler societies,” because immigrants from overseas quickly outnumbered and displaced the original inhabitants—unlike in India and most parts of colonial Africa, where fewer Europeans ventured and those who did relied on the labor of the indigenous inhabitants. South Africa combined the characteristics of these two forms of Western expansion. The descendants of European immigrants grew to a substantial population and fully controlled politics and the economy, but they still remained far fewer in number than the native Africans, who did most of the work in the region’s mines and rural areas.
In the late nineteenth century, even as the population of the American West grew dramatically, the Argentine military occupied the Pampas, opening a vast area for cattle raising and wheat cultivation. In 1885, Canada marked the completion of its first transcontinental railroad, although the more severe climate limited the number of western settlers to a much smaller population than in the American West (and as a result, the displacement of Indians did not produce as much conflict and bloodshed). In many settler societies, native peoples were subjected to cultural reconstruction similar to policies in the United States. In Australia, the government gathered the Aboriginal populations—their numbers devastated by disease—in “reserves” reminiscent of American Indian reservations. Australia went further than the United States in the forced assimilation of surviving Aboriginal peoples. The government removed large numbers of children from their families to be adopted by whites—a policy only abandoned in the 1970s and for which the prime minister formally apologized in 2008 in a national moment of reconciliation called Sorry Day.