whitworth said:
"No CS army ever lost a battle for want of ammunition."
I'm not sure that is 100% acceptable.
Confederate artillery did run out of long-range ammunition at Gettysburg, just prior to Pickett's Charge. So it did affect any possible follow-up by Lee's Army, and probably was the reason Lee made his move directly back to Virginia, with no large intermediate defense position planned, just south of Gettysburg.
E.P. Alexander did note that conservation of ammunition was the watchword in the Confederate artillery, and that would affect tactics. ...
At the end of July 3, Lee's army seems to have had about enough artillery ammo for one more day of battle. That's a precarious position for an army to be in, particularly one so far from home.
The support for Pickett's charge was an issue of immediate supply to the batteries at the front, not of the army train running dry. Overall, it had an effect on the timing, but realistically the bombardment was not having a decisive effect anyway. (horrible enough if you happened to be in the area immediately behind the front, though.
whitworth said:
... I've wondered how much ammunition, the Confederates had on hand after the battles of Fredricksburg and Chancellorsville, to counter-attack or continue an attack.
Did the Army of Northern Virginia have enough ammunition left to continue these battles? The battle at Chancellorsville had a time line. Could the Confederate army renew the fight - another day - two days?
I have never heard of a shortage at Fredericksburg, and the reason a counterattack was rejected had to do with the dominant effect of the Union artillery if the Confederates desceeded into the lower ground closer to them.
At Chancellorsville, Lee was preparing another assault when the Union withdrew across the river, so I'd have to say he thought he had enough.
whitworth said:
We do have the Seven Days Battle. But that was within seeing distance of Confederate supplies in Richmond, more easily moved by mules and wagon.
Doesn't seem to have been a problem here, as you say.
whitworth said:
Were their any instances of the Confederate armies breaking off the fight because ammunition, though not completely expended, was running low?
It was a factor at Gettysburg, but so were the 25,000+ casualties the ANV had. All nine of Lee's infantry divisions had been committed and the Union had held. Hard to argue with the decision to withdraw.
I can't recall any major battle where the Confederates pulled out over ammo shortages. The Arizona/New Mexico expedition did lose its train.
whitworth said:
Of course, most historians never seemed to look at inherent Confederate weaknesses too closely. I think this is one of the great short-comings in studying the Civil War.
People don't like to think their people died in a helpless cause -- and the Confederacy probably could have done much better -- perhaps even won its independence -- with better leadership of the defense effort. Davis wasn't what was needed, and neither were the Johnstons, Beauregard, Bragg, etc. Lee was marvellous at what he did, but never applied his genius at the real needs outside of VA.
But what people really don't look at is that the Union crushed the Confederacy militarily. Conquest of the Confederacy was a daunting task. The Union managed it.
Regards,
Tim