Answer: The Mexican-American War.
Explanation: The Compromise of 1850 acted as a temporary truce on the issue of slavery, primarily addressing the status of newly acquired territory after the Mexican-American War.
Under the Compromise, California was admitted to the Union as a free state; the slave trade was outlawed in Washington, D.C., a strict new Fugitive Slave Act compelled citizens of free states to assist in capturing enslaved people; and the new territories of Utah and New Mexico would permit white residents to decide whether to allow slavery.
Ultimately, the Compromise did not resolve the issue of slavery’s expansion; instead, the fiery rhetoric surrounding the Compromise further polarized the North and the South.
