words: "As there may still be some non-combatants in Chattanooga, I
deem it proper to notify you that prudence would dictate their early
withdrawal." Of course, I understood that this was a device intended to
deceive; but I did not know what the intended deception was. On the
22d, however, a deserter came in who informed me that Bragg was leaving
our front, and on that day Buckner's division was sent to reinforce
Longstreet at Knoxville, and another division started to follow but was
recalled. The object of Bragg's letter, no doubt, was in some way to
detain me until Knoxville could be captured, and his troops there be
returned to Chattanooga.

During the night of the 21st the rest of the pontoon boats, completed,
one hundred and sixteen in all, were carried up to and placed in North
Chickamauga. The material for the roadway over these was deposited out
of view of the enemy within a few hundred yards of the bank of the
Tennessee, where the north end of the bridge was to rest.

Hearing nothing from Burnside, and hearing much of the distress in
Washington on his account, I could no longer defer operations for his
relief. I determined, therefore, to do on the 23d, with the Army of the
Cumberland, what had been intended to be done on the 24th.

The position occupied by the Army of the Cumberland had been made very
strong for defence during the months it had been besieged. The line was
about a mile from the town, and extended from Citico Creek, a small
stream running near the base of Missionary Ridge and emptying into the
Tennessee about two miles below the mouth of the South Chickamauga, on
the left, to Chattanooga Creek on the right. All commanding points on
the line were well fortified and well equipped with artillery. The
important elevations within the line had all been carefully fortified