The exchanges were stopped because there was no doubt that the
CS was not holding up their end of the bargain. aka putting troops back into the field before they were exchanged. Grant knew this beyond a shadow of a doubt when he met men who he had captured at Vicksburg at Missionary Ridge. Add the refusal of the
CS to treat captured Black troops as POWs and you have an understanding as to why the exchanges were stopped. It was the right choice. I stand by that.
Are you meaning to tell me that there were no wagons to be had in Georgia to go get some corn or meal from farmers? (prior to Shermans march to the Sea and even the fall of Atlanta) Are you saying that the prisoners were allowed to plant gardens outside the walls of Andersonville? That they were allowed to gather some pine trees from outside the stockade and make decent shelter?
Was Wirz a criminal? Or was he just incompetant? I look at him as criminally negligent. Apparently, he and his guards ate quite well. Could the
CS have done more? Absolutely, though in fairness they lacked the logistical know how to keep Savannah fed... why should Andersonville have been any different.
Sherman fed 60,000 men for the entire march across North Georgia. 25,000 freed slaves fed themselves and between 5000-10,000
CS deserters had little trouble eating. Wheeler fed his men in the same way. Yet Wirz couldn't or wouldn't make any viable attempts at feeding the men in his charge.
While Union POW Camps were a far cry from a picnic;
CS guests were provided shelter, fresh water (or at least as good as that of the guards) the same rations as the guards (there are some notable exceptions) firewood or coal and at times clothing, winter blankets etc. While I agree that the Union POW Camps could have and should have been run more effectively and humanely the Union bears no blame for the conditions at Andersonville or any of the other Prisons where Union troops were held. Dishonest and dishonorable men who ran the
CS parole boards tainted the Exchange system to the point that it was suspended. 25,000 men were captured at Vicksburg, how many Union soldiers were exchanged for them? There is part of the answer for overcrowding. The
CS could have easily lightened their load a bit by honoring the exchange system. They didn't. The
CS could have eased their burden by treating captured USCT men as human beings instead of killing them outright or placing them into slavery. Grant did his job in defending them.