"This relative lack of external pressure, together with the rise of laissez-faire liberalism at home, caused many a commentator to argue that colonial acquisitions were unnecessary, being merely a set of “millstones” around the neck of the overburdened British taxpayer. Yet whatever the rhetoric of anti-imperialism within Britain, the fact was that the empire continued to grow, expanding (according to one calculation) at an average annual pace of about 100,000 square miles between 1815 and 1865. Some were strategical/commercial acquisitions, like Singapore, Aden, the Falkland Islands, Hong Kong, Lagos; others were the consequence of land-hungry white settlers, moving across the South African veldt, the Canadian prairies, and the Australian outback—whose expansion usually provoked a native resistance that often had to be suppressed by troops from Britain or British India. And even when formal annexations were resisted by a home government perturbed at this growing list of new responsibilities, the “informal influence” of an expanding British society was felt from Uruguay to the Levant and from the Congo to the Yangtze. Compared with the sporadic colonizing efforts of the French and the more localized internal colonization by the Americans and the Russians, the British as imperialists were in a class of their own for most of the nineteenth century."