<span>congress can declare war</span>
The Congress of Vienna reorganized Europe after the Napoleonic Wars.
The major goal was to establish a balance between the Five Powers - Austria, Prussia, England, France and Russia -
As a result, the French returned territories gained by Napoleon from 1795 - 1810. Russia extended its powers and received souveranity over Poland and Finland. Austria, too extended its territory.
Guam is technically part of the U.S, so it would be English and the other group is Polynesian.
Answer:
A. Participation of the United States in the Vietnam War