The Portuguese colonized Angola on the West Coast.
The main issues were Slavery and State's Rights, which caused the South to argue with the North whether to ban Slavery or not. Abraham Lincoln was Anti-Slavery, which would be a threat to the South's Economy. When Lincoln got elected in the Election of 1860, South Carolina (and by extension the rest of the South) got angry because they could loose their State's Rights, and then they seceded.
Answer:
Americans wanted to stay out because Congress passed a series of Neutrality acts in the 1930's, which was aimed to prevent involvement in wars, and it banned the American citizens from trading with nations at war.
To ignore conflict/disagreement