to besiege
Vicksburg I must first destroy all possibility of aid. I therefore
determined to move swiftly towards Jackson, destroy or drive any force
in that direction and then turn upon Pemberton. But by moving against
Jackson, I uncovered my own communication. So I finally decided to have
none--to cut loose altogether from my base and move my whole force
eastward. I then had no fears for my communications, and if I moved
quickly enough could turn upon Pemberton before he could attack me in
the rear.
Accordingly, all previous orders given during the day for movements on
the 13th were annulled by new ones. McPherson was ordered at daylight
to move on Clinton, ten miles from Jackson; Sherman was notified of my
determination to capture Jackson and work from there westward. He was
ordered to start at four in the morning and march to Raymond.
McClernand was ordered to march with three divisions by Dillon's to
Raymond. One was left to guard the crossing of the Big Black.
On the 10th I had received a letter from Banks, on the Red River, asking
reinforcements. Porter had gone to his assistance with a part of his
fleet on the 3d, and I now wrote to him describing my position and
declining to send any troops. I looked upon side movements as long as
the enemy held Port Hudson and Vicksburg as a waste of time and
material.
General Joseph E. Johnston arrived at Jackson in the night of the 13th
from Tennessee, and immediately assumed command of all the Confederate
troops in Mississippi. I knew he was expecting reinforcements from the
south and east. On the 6th I had written to General Halleck:
"Information from the other side leaves me to believe the enemy are
bringing forces from Tullahoma."
Up to this time my troops had been kept in supporting distances of each
other, as far as the nature of the country would admit. Reconnoissances
were constantly made from each corps to enable them to acquaint
themselves with the most practicable routes from one to another in case
a union became necessary.
McPherson reached Clinton with the advance early on the 13th and
immediately set to work destroying the railroad. Sherman's advance
reached Raymond before the last of McPherson's command had got out of
the town. McClernand withdrew from the front of the enemy, at Edward's
station, with much skill and without loss, and reached his position for
the night in good order. On the night of the 13th, McPherson was
ordered to m
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