D. Plains Indians started hunting buffalo more efficiently.
This helped them move more accessibly throughout the land.
Answer:
The plan to succeed, Germany would have to attack France in such a way to avoid the heavy fortifications along the franco- German border.
If a nation is very small they could only accept a certain amount of people. They are small so they only have so much food, space, etc. to provide for its citizens. Though if the nation was large such as the US or Canada they can be a little less strict and allow more people in.
