 Complete the following phrase:  The 207th transferred to the IX Corps of the Army of the Potomac on 24 November, and participated in a demonstration on the left flank without fighting. After returning to the corps lines, it encamped on the Army Line Railroad near Fort Prescott on the extreme right flank. The Provisional Brigade was organized during December into the 3rd Division of the corps, commanded by Brigadier General John F. Hartranft. The 207th became part of the 2nd Brigade of Colonel Joseph A. Mathews alongside the 205th and 211th Pennsylvania. During the northern hemisphere winter of 18641865, the regiment conducted training and participated in several forays without participating in fighting, including support of the Weldon Railroad expedition between 7 and 11 December, and the 