Answer:
a the end of World War II to the fall of the Soviet Union
Step-by-step explanation:
The Cold War refers to the period of tension between the United States and the Soviet Union which was towards the end of World War II to the fall of the Soviet Union.
The Cold War was a period of hostility between the United States of America and the Soviet Union over the spread of Communism and this coincided with the fall off the Soviet Union.