Native Americans is the answer
Answer/Explanation
The US sought to defend its eastern border from attack and drive Spain from power in the Americas.
The answer is A: <span>In the 1990s, most immigrants to the United States came from Asia and the Americas.
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The American civil War was a war fought from 1861 to 1865. It was one of the bloodiest wars.
<span>The United States experienced major waves of immigration during the colonial era, the first part of the 19th century and from the 1880s to 1920. Many immigrants came to America seeking greater economic opportunity, while some, such as the Pilgrims in the early 1600s, arrived in search of religious freedom.
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