The American Civil War was fought between the Union (the North) and the Confederate States of America (the South), which was comprised of the Southern states that had seceded, or withdrawn, from the Union.
During the American Civil War, men from the South who believed in the Union fought on the Northern side,
and Confederate sympathizers from the North wore the gray uniform of the South Tragically, brothers fought
brothers and fathers fought sons across the Mason-Dixon Line
Which theme is represented in the passages?