Germans had dreamed of colonial imperialism since 1848. Although Bismarck had little interest in acquiring overseas possessions, most Germans were enthusiastic, and by 1884 he had acquired German New Guinea. By the 1890s, German colonial expansion in Asia and the Pacific (Kiauchau in China, Tientsin in China, the Marianas, the Caroline Islands, Samoa) led to frictions with the UK, Russia, Japan, and the US. The largest colonial enterprises were in Africa, where the Herero Wars in what is now Namibia in 1906–1907 resulted in the Herero and Namaqua genocide.