Summary:
In mid-September, 1862, Union General George B. McClellan moved to oppose Robert E. Lee's invasion of Maryland. In this dispatch, McClellan informs General-in-Chief Halleck of the position of his army, and warns about the safety of Chambersburg.

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Maj. Gen. H. W. HALLECK,
Gen.-in-Chief:

September 14, 1862--11.15 a. m. (Received 12 m.)

We occupy Middletown and Jefferson. The whole force of the enemy in front. They are not returning to Virginia. Look well to Chambersburg. Shall lose no time. Will soon have a decisive battle.

GEO. B. McCLELLAN,
Maj.-Gen.

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Bibliographic Information : Letter Reproduced from The War of The Rebellion: Official Records of the Union and Confederate Armies, Series 1, Volume 19, Serial No. 28, Pages 288, Broadfoot Publishing Company, Wilmington, NC, 1997.