Answer:
They didn't want to become involved because they thought the war was fought for European issues that didn't concern the united states
Explanation:
The correct answer is: Ralph Waldo Emerson spoke out against the acquisition of the Southwest following the Mexican-American War.
Ralph Waldo Emerson was an American essayist, lecturer, philosopher, and poet who led the transcendentalist movement of the mid-19th century. He was seen as a champion of individualism and a prescient critic of the countervailing pressures of society, and he disseminated his thoughts through dozens of published essays and more than 1,500 public lectures across the United States.
To promote worldwide peace.