Answer:
Airplanes were used for war at first
"<span>C. He believed strongly in the Union and the power of compromise in balancing rights" is the best answer. Calhoun was a fan of strong national government early on, but then switched to favoring states' rights. </span>
Claim to Act with devine authority.
I believe it's "<span>the source of the Mississippi River."
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White expansion. War between Indians and the whites was very common because the whites seemingly had quite an appetite for the Indian land. Indians struggle to contain this aggressive expansion led to war with hope to reduce American settlement and expansion.