OOC: You do realize that both sides in that conflict had been indoctrinated for years to hate one another? And that both sides had given orders for either no prisoners to be taken, or that prisoners would be used for slave labor? Comparing that situation to the US Civil War is, quite frankly, impossible to do. Lee made it clear even in the OTL that he thought of surrender with honor as a better alternative to a pointless death. At least the Union soldier will be able to live till after the war now, unless you actually try to liberate your best chance at winning the war quickly.