Answer:
The various cultures collectively termed "Mound Builders" were inhabitants of North America who, during a 5,000-year period, constructed various styles of earthen mounds for religious, ceremonial, burial, and elite residential purposes.
After the defeat of Russia Japan focus on the expansion of its empire beginning with "China," since this presented them with the greatest potential in terms of harvesting natural resources.
I hope this is right, The dutch colonizations. Hope it helped
The Sahel was the last area in the northern parts of Africa, where vegetation can survive and where people were living at the time. Following the Sahel to the North one can find the Sahara desert which is a natural barrier that no invading force could trespass.