Pemberton's force in my front was the main part of the garrison of Vicksburg, as the force with me was the defence of the territory held by us in West Tennessee and Kentucky.

I hoped to hold Pemberton in my front while Sherman should get in his rear and into Vicksburg.

The further north the enemy could be held the better.
It was understood, however, between General Sherman and myself that our movements were to be co-operative; if Pemberton could not be held away from Vicksburg I was to follow him; but at that time it was not expected to abandon the railroad north of the Yallabusha.

With that point as a secondary base of supplies, the possibility of moving down the Yazoo until communications could be opened with the Mississippi was contemplated.
It was my intention, and so understood by Sherman and his command, that if the enemy should fall back I would follow him even to the gates of Vicksburg.

I intended in such an event to hold the road to Grenada on the Yallabusha and cut loose from there, expecting to establish a new base of supplies on the Yazoo, or at Vicksburg itself, with Grenada to fall back upon in case of failure.