if memory serves me, it was a border dispute with Mexico over the Texas territory. The Mexicans attacked an American patrol and that was the start of the conflict. But also idk and I could be wrong.
Thomas Paine (1737–1809) was a radical writer who emigrated from England to America in 1774. Just two years later, early in 1776, Paine published Common Sense, a hugely influential pamphlet that convinced many American colonists that the time had finally come to break away from British rule. In Common Sense, Paine made a persuasive and passionate argument to the colonists that the cause of independence was just and urgent. The first prominent pamphleteer to advocate a complete break with England, Paine successfully convinced a great many Americans who'd previously thought of themselves as loyal, if disgruntled, subjects of the king.
Answer:
A. resulted in many civilian deaths.
Explanation:
I believe it would be globalization.
En.m.wikipedia.org/wiki/Agriculture_in_the_prehistoric_Southwest
that should give you the whole thing
