After the Election of 1860, states in the southern portion of the country withdrew from the United States. Lincoln attempted to preserve the Union by invading the South, starting what became known as the Civil War.
Horizontal lines on a map/globe are the lines of latitude.
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I believe the answer is: inseparability
inseparability aspect of services refers to the market phenomenon where consumers would let their judgement for the quality of the overall service is influences even by smaller part of the service.
Other example would be when a customer believe a certain barbershop is excellent simply because he has a pleasant conversation with the barber, not because the quality of the haircut per se.
I think one of them is Mexico.