This volume charts an era of rapid growth for the United States. Beginning with the aftermath of the Louisiana Purchase, the early sources in this volume highlight the rampant speculation that engulfed U.S. writers on what was to be done with this land. As the sources show, even at this early point some proposed moving marginalised groups into the furthest reaches of this land. The theme of removal and who gets to remain in the ever-expanding nation is a consistent theme of this volume. Whether it be the policies associated with Indian Removal, or the African Colonization scheme that reached its apex during this period, white policymakers, journalists and reformers refused to envision a multiracial polity. To justify removal and the expansion of the settler state, thinkers both inside and out of government began to articulate what would later be known as Manifest Destiny. This is also the era when the Monroe Doctrine was established, yet the sources in this volume also point to the anxiety U.S. settlers had about European encroachments in North America. The annexation of Texas, another key theme of the volume, highlights the worry that all sections of settler society had about British overtures in the region. Perspectives from European writers are also included to show how the imperialism of the U.S. was being perceived by their rivals. Despite the successes of the U.S. during this period, fears of enemies within and outside the metropole continued to rack the republic.