Many European countries had what was referred to as a "Sphere of Influence" in China at this time. So, Secretary of State, John Hay, created an open door policy to allow all countries equal privileges in trade.
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The accurately describes both the South and slavery in 19th-century America is the below:
<span>The slaves' most important task was providing labor in factories that produced goods to be exported to European nations.</span>
Answer:
The Mexican army attacked them. The main cause of the war was the westward expansion of the United States. All through the 19th century Americans believed it was their right to expand westward. At the time they believed they could conquer the people already living on the land and take it for the United States.
Explanation: