the Potomac River, a small area about
the mouth of James River, covered by the troops at Norfolk and Fort
Monroe, and the territory covered by the Army of the Potomac lying along
the Rapidan, was in the possession of the enemy. Along the sea-coast
footholds had been obtained at Plymouth, Washington, and New Bern, in
North Carolina; Beaufort, Folly and Morris Islands, Hilton Head, Fort
Pulaski, and Port Royal, in South Carolina; Fernandina and St.
Augustine, in Florida. Key West and Pensacola were also in our
possession, while all the important ports were blockaded by the navy.
The accompanying map, a copy of which was sent to General Sherman and
other commanders in March, 1864, shows by red lines the territory
occupied by us at the beginning of the rebellion, and at the opening of
the campaign of 1864, while those in blue are the lines which it was
proposed to occupy.

Behind the Union lines there were many bands of guerillas and a large
population disloyal to the government, making it necessary to guard
every foot of road or river used in supplying our armies. In the South,
a reign of military despotism prevailed, which made every man and boy
capable of bearing arms a soldier; and those who could not bear arms in
the field acted as provosts for collecting deserters and returning them.
This enabled the enemy to bring almost his entire strength into the
field.

The enemy had concentrated the bulk of his forces east of the
Mississippi into two armies, commanded by Generals R. E. Lee and J. E.
Johnston, his ablest and best generals. The army commanded by Lee
occupied the south bank of the Rapidan, extending from Mine Run
westward, strongly intrenched, covering and defending Richmond, the
rebel capital, against the Army of the Potomac. The army under Johnston
occupied a strongly intrenched position at Dalton, Georgia, covering and
defending Atlanta, Georgia, a place of great importance as a railroad
centre, against the armies under Major-General W. T. Sherman. In
addition to these armies he had a large cavalry force under Forrest, in
North-east Mississippi; a considerable force, of all arms, in the
Shenandoah Valley, and in the western part of Virginia and extreme
eastern part of Tennessee; and also confronting our sea-coast garrisons,
and holding blockaded ports where we had no foothold upon land.

These two armies, and the cities covered and defended by them, were the
main objective points of the campaign.

Majo