Because they needed the land
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assimilate into Mexican society.
Clark
George Washington sent American troops to the Ohio River Valley in 1790 because he thought that the Northwest Territory was critical to the security and growth of the new nation.
Mesopotamia Indus river valley Niger river valley Andes mountains Chinese river valley
The Blackstone River Valley is famous for the Industrial Revolution.
The Seige of Fort Stanfix occurred during the American Revolution. This conflict took place at the Mohawk River Valley and was a victory for the Americans.
Settlement had begun in the Ohio River Valley as well as the Mississippi River Valley. Exploration and rising tensions with American Indians had also begun.
France
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The Hudson River Valley in New York separated New England from the other American colonies. England attempted to capture the valley during the American Revolutionary War.
It is on the American River which flows through California's Sacramento Valley
The Hudson River was used during the American Revolution to transport supplies, materials and troops from New York City to upstate NY.
The Mississippi River
The Delaware.
zeron river
Danube River Valley