Was there a book there a book or a passage that you read cause we can't give a strait up answer if we don't know the the thing to read...
I believe that the answer is Mesopotamia, China, Egypt, and India.
Imperialists seeked possession of colonies that had extractive economies because they wanted to gain the advantage of the global resources.
The US could only attack from one angle Wich was the Omaha beach frount
