Trench warfare is a fighting style that was created during WWI to combat the new invention of machine guns which could mow down hundreds to thousands of men easily within seconds. By creating deep trenches, they were able to not be hit by the bullets that were above while still attacking. Enemies often used trenches themselves to protect themselves from the other sides machine guns.
Answer
they keep them in the south and out the northern states
Explanation:
The creation of new knowledge systems, social hierarchies, and networks of thinkers
Population- More moved west and towns were created.
Enviroment- This created more pollution in the west and harmed ecosystems or dramatically changed them.
Minorities- The majorities didn't want the minorities to get gold that they could have gotten.
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