Answer:
Expansion lead to economic promise and fueled the manifest destiny but it also lead to sectional tension over slavery. The north contained a lot of abolitionists while the south was commonly pro-slavery, this increased sectional tension because each side wanted to see their ideals extended into the west.
Explanation:
Depending on what your teacher taught you, it could be September 1939, when Germany invaded Poland, or 1933, when japan invaded Manchuria. If you need more help, message me and I will be glad to help you!
Relationships between the two countries worsened
The relationships between the two countries worsened despite Carter strong intent to normalize relation between the two countries. This was caused by Cuba adventures in Africa and his sending of prisoners to the USA.
