The united states emerged as an imperialist power following
a. the civil war.
b. the spanish american war.
c. world war ii.
d. world war i.

the united states emerged following the spanish merica war

B

Explanation:

Nuclear weapons represent the ultimate defense of the nation, a deterrent against any and all potential adversaries. Combined with diplomacy and conventional military capabilities, nuclear weapons have helped to avoid a large-scale conflict between leading world powers for over fifty years.