The Immigration Act of 1924 produced highly discriminatory results because it set a max on how many immigrants could come to the US depending on what country they came from.
For example, there were many more opportunities for citizens from countries like Germany, Great Britain, and Sweden in comparison to individuals from Italy or Russia. Here are some numbers to support this claim:
Germany's Quota (aka amount that could come into US)- 51,227
Great Britain and Northern Ireland's Quota- 34,0007
Sweden's Quota- 9,561
Italy's Quota- 3,845
Russia's Quota-2, 248.
The territorial expansion of the US and the question of whether or not slavery would be allowed in the new territories was perhaps the single greatest factor leading up to the war, since before expansion, slavery was mostly confined to the South.
Answer:
Lincoln called for 75,000 volunteers to enlist. Lincoln used judicial procedures to uphold the Union. Lee joined the Southern army as ALL slave holding states seceded.