A amendment can be proposed By the Congress
Answer:
Asia
Explanation:
When the United States entered into WW2 the Japanese attacked the Pearl Harbor which they never thought it would happen.
The answer is slavery. The Republicans were anti-slavery, while the democratic south was pro slavery. Eventually that, and a couple of other things, led to the Civil War.
Sorry if this was a bit late, Brainly had just recommended this question for me to answer, but I hope this helps!
One positive is it helped the countries against communism by supplying them with weapons. A negative is that the countries against it could have been impostures and used the weapons we gave them against us