I am sort of confuse becouse this is phrased as one question (at first i thought you where talking about the recent fight about not putting in a pipeline but i relized you said why DID)
So i will split it into 2 Native americans fought for land becouse for one they needed a place to live and second they belived the great spirit wanted them to live where they did
They fought for water to live/drink
Rough Riders
The most famous of all the units fighting in Cuba, the "Rough Riders" was the name given to the First U.S. Volunteer Cavalry under the leadership of Theodore Roosevelt. Roosevelt resigned his position as Assistant Secretary of the Navy in May 1898 to join the volunteer cavalry.
Hope this helps :)
Answer:
a theory of demography
Explanation:
demographic transition a theory of demography which states that, as a nation industrializes, it goes through a series of populational changes, starting with a decline in infant and adult mortality and followed later by a reduction in birth rate.
Hope this helps :)
Pls mark brainliest :P
If not the answer you were looking for explain further, and I will help :0)