Influence of Western Expansion Ideas on Imperial Policy

Discuss how the ideas that drove Western Expansion echoed in late nineteenth-century and early twentieth-century foreign and imperial policies.

How did Western expansion affect the policies of the leading countries? How did this affect the start of the First World War? Be sure to place the item into a detailed historical context and time period of the item as well as why it is important and significant. Do your best to answer the who, what, where, and when of the item.