He acted purely on the defensive, behind breastworks, or feebly on the offensive immediately in front of them, and where, in case of repulse, he could easily retire behind them.

Without a greater sacrifice of life than I was willing to make, all could not be accomplished that I had designed north of Richmond.

I therefore determined to continue to hold substantially the ground we then occupied, taking advantage of any favorable circumstances that might present themselves, until the cavalry could be sent to Charlottesville and Gordonsville to effectually break up the railroad connection between Richmond and the Shenandoah Valley and Lynchburg; and when the cavalry got well off, to move the army to the south side of the James River, by the enemy's right flank, where I felt I could cut off all his sources of supply, except by the canal.
On the 7th, two divisions of cavalry, under General Sheridan, got off on the expedition against the Virginia Central Railroad, with instructions to Hunter, whom I hoped he would meet near Charlottesville, to join his forces to Sheridan's, and after the work laid out for them was thoroughly done, to join the Army of the Potomac by the route laid down in Sheridan's instructions.
On the 10th of June, General Butler sent a force of infantry, under General Gillmore, and of cavalry under General Kautz, to capture Petersburg, if possible, and destroy the railroad and common bridges across the Appomattox.

The cavalry carried the works on the south side, and penetrated well in towards the town, but were forced to retire.
General Gillmore, finding the works which he approached very strong, and deeming an assault impracticable, returned to Bermuda Hundred without attempting one.
Attaching great importance to the possession of Petersburg, I sent back to Bermuda Hundred and City Point, General Smith's command by water, via the White House, to reach there in advance of the Army of the Potomac.
This was for the express purpose of securing Petersburg before the enemy, becoming aware of our intention, could reinforce the place.
The movement from Cold Harbor commenced after dark on the evening of the 12th.

One division of cavalry, under General Wilson, and the 5th corps, crossed the Chickahominy at Long Bridge, and moved out to White Oak Swamp, to cover the crossings of the other corps.