The Netherlands, Luxembourg, Poland, Austria, Belgium basically all countries surrounding Germany
I would say that there aren't really any absolute standards for truth and justice. The reason for this is that considering we're only one species that has evolved out of apes, it is really hard to say whether the way we perceive reality and discover things through science can be thought as an absolute standard for truth. From this perspective it's even harder to find an absolute standard for justice.
No, American manufacturers have been sourcing products and parts from around the world for decades, and today it is nearly impossible (and not to mention extremely expensive) for companies to attempt to extract themselves from the global supply chain.
That means that slavery could’ve lasted longer if the south won the Civil War. If the Union hadn’t stayed together – that is, if the United States had broken into two – then it’s likely that other regions of the US would have taken advantage of Confederate secession or would have seceded themselves, either from the then-existing North or the South. So you could certainly see an independent Midwest, and the area from California through to Washington state probably could have made itself its own place. Even within the Confederacy, there were certainly sections like East Tennessee that were vigorously Unionist during the war, and which might have pulled away.
Hopefully this helped.