Internationalists: Believed that the U.S. should play an active role in world affairs and work toward achieving a just peace but not enter the war. ... Wilson could not keep America out of war so they fought on the side of the Allies.
MARK ME BRAINIEST
The united states expand its role on the international scale
by trying to pursue a more aggressive policy that it had of which they have the
imperial presence in the marked out western hemisphere and as well as in Asia.
Wilson had contributed to the expansion by growing the military presence and in
addition, many believe that the duty of America as to become an empire that
will spread to an order, moralism and as well as Christianity.
Slavery was not allowed in the USA. Hope it helps!