Hancock should march and take up a position as if in support of the two left corps.

To-morrow night, at twelve or one o'clock, he will be moved south-east with all his force and as much cavalry as can be given to him, to get as far towards Richmond on the line of the Fredericksburg Railroad as he can make, fighting the enemy in whatever force he can find him.

If the enemy make a general move to meet this, they will be followed by the other three corps of the army, and attacked, if possible, before time is given to intrench.
Suitable directions will at once be given for all trains and surplus artillery to conform to this movement.
U.S.GRANT.
On the 20th, Lee showing no signs of coming out of his lines, orders were renewed for a left-flank movement, to commence after night..