Does anyone know when and where Forrest and his cavalry joined up with Hood?
Forrest arrived on November 14th.
The reason's for Hood's invasion of Tn was no more grandiose than Lee's Invasion of Pa or Md.
The difference between the two is very simple.
If you take the details of it to any professional military organization for analysis, they may or may not agree with Lee's chances for success, but they will see a professionally prepared plan of operations. It is clearly risky, but based on valid and recognized military principles. It fails, essentially, because the Confederates did not execute as well as they should have, and the Union executed better than expected (i.e., Lee got beat).
If you take Hood's plan to them, they'll see a plan that is not well prepared, is based on unsound ideas, and is not carried out in a professional manner by the commanding officer. The AoT fought with great courage, but executed erratically. While Lee's command did not do well in PA, you will find nothing as embarrassing as Spring Hill or Nashville there, and no near-suicidal attacks into the teeth of fortified lines.
If Lee wins his battle, he might possibly have changed the future of the Confederacy. If Hood wins at Franklin, all that happens is that a few more men die and perhaps the Confederacy would limp along another week or two.
Some historians accept this as the First hint a plan (from the very top)for the long desired recovery of Tn.
Beauregard's letter to Davis, Dec. 6th, 1864, explains the rationale for the campaign into Tennessee. and concluding ..."Under the circumstances, after consultation with General Hood, I concluded to allow him to prosecute with vigor his campaign into Tennessee and Kentucky, hoping that by defeating Thomas' army and such other forces as might hastily be sent against him, he would compel Sherman, should he reach the coast of Georgia or South Carolina, to repair at once to the defense of Kentucky and, perhaps, Ohio and thus prevent him from reinforcing Grant. Meanwhile supplies might be sent to Virginia from Middle and East Tennessee, thus relieving Georgia from the present constant drain upon its limited resources." Fanciful, certainly, but are they really all that different from the benefits expected by Lee concerning his movements into Md or Pa?
Is there really all that much proof that Davis or Beauregard were unawaare of Hood's intent or that they really disapproved?
On about Nov. 16, Beauregard began to suspect Sherman was going to move. By the 17th, he had a telegram from Cobb telling him Sherman had left Atlanta.
Beauregard then tries to get Hood to send Jackson's cavalry division to Georgia. Hood refuses on the 18th. Beauregard is on his way back from Corinth that day.
On November 21, Hood moved forward on his invasion of TN. On Nov. 24, Beauregard telegraphs Davis that he has ordered Hood to take the immediate offensive in TN to "relieve General Lee". On Nov. 30, Davis (having just received this), wires back, wanting to know why the heck Beauregard has sent Hood off on this silly inavsion of TN.
Hood's response of Dec. 6th says this:
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On the 6th day of December, in answer to a telegram from the President, I addressed him, from Augusta, a communication, stating that all had been done practicable under existing conditions, with the limited means at command, to oppose the advance of Sherman toward the Atlantic coast, and that I had deemed it inexpedient to countermand the campaign of General Hood into Tennessee to attempt the pursuit of Sherman, for the following reasons, namely:
First. The roads and creeks from the Tennessee to the Coosa River across Sand and Lookout Mountains had been rendered impassable by the prevailing rains.
Second. Sherman, with an army better appointed and of superior numbers, had the start of about 275 miles on comparatively good roads.
Third. To pursue Sherman, the march of the Army of Tennessee would necessarily have been over roads with all the bridges destroyed, and through a desolated country, affording neither subsistence nor forage, while a retrograde movement of the army must have seriously depleted its ranks by desertions.
Fourth. Moreover, to have recalled the army to follow Sherman, would have opened to Thomas the richest portions of Alabama. Montgomery, Mobile, and Selma would have easily fallen, without insuring the defeat of Sherman.
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There's more, but it all comes down to CYA: the mere fact that Sherman headed East shows Hood was totally out of the picture, so he might as well go up to TN.
P.S. Gettysburg was, Lee's Plan--Lee's Failure. Catchy, but totally lacking any relevance to to the question of Hood's competence as army commander. Unless Of Course being defeated is the criteria for incompetence.
The problem is that Hood's plan offers no opportunity for success. If he wins and takes Nashville, Sherman still rumbles through three states and comes up to take Lee in the rear. OTOH, if Lee wins in 1863, the entire Union war effort would have to be rearranged (Vicksburg and Port Hudson still fall, but TN will have to be robbed for troops, the RRs are broken, etc.). It doesn't win the war, but it does a lot more than anything than can be imagined from Hood's plan.
Tim