The force that I could take with me into the field at this time numbered about 26,000 men.  Within the limits of the geographical division there was a much greater number of troops than this.  Baltimore, Washington, Harper’s Ferry, Hagerstown, Frederick, Cumberland, and a score of other points; besides the strong detachments that it took to keep the Baltimore and Ohio railroad open through the mountains of West Virginia, and escorts for my trains, absorbed so many men that the column which could be made available for field operations was small when compared with the showing on paper.  Indeed, it was much less than it ought to have been, but for me, in the face of the opposition made by different interests involved, to detach troops from any of the points to which they had been distributed before I took charge was next to impossible.

In a few days after my arrival preparations were completed, and I was ready to make the first move for the possession of the Shenandoah Valley.  For the next five weeks the operations on my part consisted almost wholly of offensive and defensive manoeuvring for certain advantages, the enemy confining himself meanwhile to measures intended to counteract my designs.  Upon the advent of Torbert, Early immediately grew suspicious, and fell back twelve miles south of Martinsburg, to Bunker Hill and vicinity, where his right flank would be less exposed, but from which position he could continue to maintain the break in the Baltimore and Ohio railroad, and push reconnoitring parties through Smithfield to Charlestown.  These reconnoitring parties exhibited considerable boldness at times, but since they had no purpose in view save to discover whether or not we were moving, I did not contest any ground with them except about our outposts.  Indeed, I desired that Early might remain at some point well to the north till I was fully prepared to throw my army on his right and rear and force a battle, and hence I abstained from disturbing him by premature activity, for I thought that if I could beat him at Winchester, or north of it, there would be far greater chances of weighty results.  I therefore determined to bring my troops, if it were at all possible to do so, into such a position near that town as to oblige Early to fight.  The sequel proved, however, that he was accurately informed of all my movements.  To anticipate them, therefore, he began his retreat up the valley the day that I moved out from Halltown, and consequently was able to place himself south of Winchester before I could get there.

CHAPTER XXIV.

MOVING ON GENERAL EARLY—­GENERAL GRANT’S LETTER OF INSTRUCTIONS
—­DESTROYING THE RESOURCES OF THE VALLEY—­REASON FOR THE DESTRUCTION
—­WITHDRAWAL TO HALLTOWN—­ALARM IN THE NORTH OVER THE RETROGRADE
MOVEMENT—­RENEWING THE ADVANCE UP THE VALLEY—­GENERAL ANDERSON’S
ATTEMPT TO RETURN TO PETERSBURG—­STRENGTH OF THE ARMIES.