How and why did the Union prevail against the Confederacy during the Civil War (1861-1865)? What were some of the main obstacles and challenges each side faced and what, ultimately, seemed to give the Union the edge?
The Union prevailed against the CSA because it had significantly more men, ships, money, and materiel than its opponents. The only obstacles which faced the Union was the fact that it could not find a decent and reliable overall army commander until the latter part of the war and that internal politics often hurt the war effort. (For example: Copperheads, draft riots, etc.)
The CSA, on the other hand, suffered from a wide variety of problems: it had fewer men than the North, had no real industry, did not have rail networks, did not have a navy comparable to that of the North, suffered constantly from internal tensions, and depended on export for profits.
It’s advantages were that it had excellent military leaders, had a strong military tradition, and arguably had common soldiers more motivated than those of the North.