A few days later, on the 31st of October, Major-General Nathaniel P. Banks was sent to New York and Boston, with similar orders, to collect in New England and New York a force for the co-operating column from New Orleans. On the 8th of November this was followed by the formal order of the President assigning Banks to the command of the Department of the Gulf, including the State of Texas.
This assignment was wholly unexpected by Banks. It was, indeed, unsought and unsolicited, and the first offer, from the President himself, came as a surprise. At the close of Pope's campaign, when the reorganized Army of the Potomac, once more under McClellan, was in march to meet Lee in Maryland, Banks had been forced, by injuries received at Cedar Mountain, to give up the command of the Twelfth Army Corps to the senior division commander, Brigadier-General A. S. Williams. As soon as this was reported at headquarters, McClellan created a new organization under the name of the "Defences of Washington," and placed Banks in command.
For some time after this Banks was unable to leave his room; yet, within forty-eight hours, a mob of thirty thousand wounded men and convalescents, who knew not where to go, and of stragglers, who meant not to go where they were wanted, was cleared out of the streets of Washington, and pandemonium was at an end. Order was rather created than restored, since none had existed in any direction. The Fifth Corps was sent to join the army in the field; within a fortnight, a full army corps of able-bodied stragglers followed; the fortifications were completed; ample garrisons of instructed artillerists were provided. These became "the Heavies" of Grant's campaigns. Almost another full army corps was organized from the new regiments. Finally the whole force of the defences, about equal in numbers to Lee's army, was so disposed that Washington was absolutely secure. The dispositions for the defence of the capital and the daily operations of the command were clearly and constantly made known to the President and Secretary of War as well as to the General-in-chief. Thus it was that, less than two months later, in the closing days of October, President Lincoln sent for Banks and said: "You have let me sleep in peace for the first time since I came here. I want you to go to Louisiana and do the same thing there."