...ge by his cavalry, and rest his army in the Valley of Virginia, in threatening lines against Washington City, but found the Shenandoah River full and past fording, and before the tide began to recede General Meade crossed the Potomac east of the Blue Ridge and began to occupy the gaps, which called for a southern march of the Confederates. On the 19th my command was ordered to Millwood to secure, if possibl...