The reconstruction
The most difficult task confronting many Southerners during Reconstruction was devising a new system of labor to replace the shattered world of slavery. The economic lives of planters, former slaves, and nonslaveholding whites, were transformed after the Civil War.
I think that the best answer is the geographic location: many other countries (Sweden for example) have tried being neutral at different times but did not manage to: but the fact that the US has only two boundaries, and that both other countries also have a history of fighting from independence from a European power, makes it possible that unless US decideds to get involved in international politics, it can be "left alone".
In Chicago, the sides were extremely segregated. The african american community was strictly on the south side. Redlining would occur to affect african americans abilities to rent or buy homes. Chicago’d basically meant segregating or discriminated against.
In this story, the author is making the point that humans and animals are far more similar in many ways than people tend to think, specifically when it comes to forming relationships.
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