Answer:
The first American conflict to be fought primarily on foreign soil and the first in which American troops occupied a foreign capital was the Mexican War.
Explanation:
First, the American army invaded another country and occupied its capital, inspired by the expansionist fervor of manifest destiny, the majority of Americans supported the war, because the United States wanted to acquire California from Mexico...
Polk claimed the Mexicans had "shed blood on American soil" and called for a war statement. The government of Mexico refused to negotiate.
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