It is not America's job to keep peace around the world, America's job is to keep peace among their own country.
The answer is in the Palace of Versailles, France, on June 28, 1919
The answer to your question would be China.
Below are the choices that can be found elsewhere:
It led to a buildup of military force and the establishment of the navy.
<span>It laid the groundwork for a war between the states. </span>
<span>It caused both Spain and France to build alliances with the United States. </span>
<span>It set the stage for a government policy rejecting foreign involvement.
</span>
The answer is "It set the stage for a government policy rejecting foreign involvement. "