What company management strategy was used to suppress the homestead strike?

What event brought the us into wwii? what conflicts happened after the us entered the war? i know the first part of this question, i need with the second part.

Pl hell mafter the civil war which president was called a "carpetbagger"? a.lincolnb.johnsonb. grant

In 150 to 200 words, use evidence to compare the ideas of the abolition of the slave trade and the abolition of slavery