. "The New Imperialism (sometimes Neoimperialism or Neo-imperialism) was a period of colonial expansion\u2014and its accompanying ideologies\u2014by the European powers, the United States of America and the Empire of Japan during the late 19th and early 20th centuries. By some accounts, it began as early as 1830, and may have lasted until World War II. The period is distinguished by an unprecedented pursuit of overseas territorial acquisitions."@en . .