War of the Rebellion: Serial 027 Page 0025 Chapter XXXI. GENERAL REPORTS.

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pose of arranging for the defense of the capital. They were at once cheerfully given, although while awaiting definite instructions at Alexandria I had endeavored, as just seen, to promote a favorable result in the operations then pending, and had thus contributed, though indirectly, yet as far as I could to the defense of Washington. On the 2nd of September the formal order of the War Department placed me in command of the fortifications of Washington "and of all the troops for the defense of the capital." On the 1st of September I had been instructed that I had nothing to do with the troops engaged in active operations under General Pope, but that my command was limited to the immediate garrison of Washington. On the next day, however, I was verbally instructed by the President and the General-in-Chief to assume command of General Pope's troops (including my own Army of the Potomac) as soon as they approached the vicinity of Washington; to go out and meet them, and to post them as I deemed best to repulse the enemy and insure the safety of the city.

At this time the task imposed upon me was limited to the dispositions necessary to resist a direct attack of the enemy upon the capital. Such, indeed, was the danger naturally indicated by the defeat of our forces in front. The various garrisons were at once strengthened and put in order, and the troops were disposed to co er all the approaches to the city, and so as to be readily thrown upon threatened points. New defenses thrown up where deemed necessary. A few days only had elapsed before comparative security was felt with regard to our ability to resist any attack upon the city. The disappearance of the enemy from the front of Washington and their passage into Maryland enlarged the spllere of operations, and made an active campaign necessary to cover Baltimore, prevent the invasion of Pennsylvania, and drive them out of Maryland. Being honored with the charge of this campaign I entered at once upon the additional duties imposed upon me with cheerfulness and trust, yet not without feeling the weight of the responsibilities thus assumed and being deeply impressed with the magnitude of the issues involved.

Having made the necessary arrangements for the defense of the city in the new condition of things, I pushed forward the First and Ninth Corps, under Generals Reno and Hooker, forming the right wing under General Burnside, to Leesborough on the 5th instant; thence the First Corps, by Brookville, Cooksville, and Ridgeville, to Frederick; and the Ninth Corps, by Damascus, on New Market and Frederick. The Second and Eleventh [Twelfth] Corps, under Generals Sumner and Williams, on the 6th were moved from Tennallytown to Rockville; thence, by Middlebrook and Urbana, on Frederick, the Eleventh [Twelfth] Corps moving by a lateral road between Urban and New Market, thus maintaining the communication between the center and right wing, as well as covering the direct route from Frederick to Washington. The Sixth Corps, under General Franklin, was moved to Darnestown on the 6th instant; thence, by Dawsonville and Barnesville, on Buckeystown, covering the road from the mouth of the Monocacy to Rockville, and being in position to connect with and support the center should it have been necessary (as supposed) to force the line of the Monocacy. Couch's division was thrown forward to Offut's Cross-Roads and Poolesville by the river road, thus covering that approach, watching the fords of the Potomac, and ultimately following and supporting the Sixth Corps. The object of these movements was to feel the enemy-to compel him to develop his intentions-at the same time that the troops were in position readily to cover Baltimore of Washington, to attack him should he