However, In January 1863, several regiments of Texas troops were captured at Arkansas Post, sent North to prisons, and in April of 1863 were exchanged at City Point, Virginia.
Why didn't Lee keep these troops rather than allowing them to be sent to The Army of Tennessee, where they became Deshlar Brigade? These would have been the reenforcements, which he requested a year earlier, and in fact have even, at one point, been designated for that purpose anyway, But had been retained at Arkansas Post because of the threat there.
Was it narrowmindedness on the part of Higher commands because these men had been the center of a contriversey over the surrender of Arkansas Post? Or was there some other reason of protocol that these badly needed reenforcements for the A.N.V. were sent back to the A.o.T., since they could not get back across the Mississippi River at that point anyway.
Both of these reasons seem illogical, given the seemingly continual request for troops from the Trans-Mississippi Department for use in the Virginia Theater.