Answer:
Explanation:
The era of the Cold War began after the Second World War, roughly in 1947 and lasted decades until about 1991. It began because of the differences between the United States and the Soviet Union, chiefly capitalism versus communism.
It wasn't really a war, it was more of a huge and prolonged standoff or stalemate. Both countries had threatening nuclear weapons, but neither utilized the, There was conflict and proxy wars (each country supported one side of a war, for example the Korean and Vietnam Wars), but never direct fighting or war declarations between the US or USSR.
So, the best answer is D. No war ever erupted but difference of ideals brought about conflict