Because they had already gone at it with each other sooooo many times before, such as the 100 years war, the 30 years war, the war of spanish succession, and then arguments over north american land
4th option: Stop the spread of communism to nations.
Th<span>e rational basis test.
I hope this helps :)</span>
Answer:
For example, the USSR established the "iron curtain" to control most of Central and Eastern Europe. Additionally, American fear of the spread of communism led to a number of proxy wars. The Cold War also spread the worldwide fear of nuclear war, which heavily influenced international diplomacy and affairs.
Explanation:
