answer is option d just before world War two
The United States and the Soviet Union began building up
their military forces very quickly.
This led to a nuclear arms race whereby the two countries
competed for supremacy in nuclear warfare. The result was that each acquired
enough warfare to completely destroy the other resulting in a Mutually Assured
Destruction state of affairs
Answer:
D)the publication of the Emancipation Proclamation is the answer I'm not sure tho
