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MadisonArmstrong
The United States gained resources and gold which they reaped from the land. Also, California was controlled by Mexico for many years until the Mexican-American war, when America won the land. This vital victory gave them hoards of gold, oil, and coal, all useful and valuable materials. :)
ogorwyne

Besides the land from expansion the United States also gained resources such as gold and other ornaments.

The expansion of the United States.

The United states under Andrew Jackson had the expansionism project towards the west of the pacific.

The area of the continent were they took over was made up of resources such as gold. These were part of the motivations for taking the areas.

Read more on expansionism here:

https://brainly.com/question/9492036

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