The day after my arrival in Washington an important order was sent me, accompanied by the following letter of instructions, transferring me to a new field of operations: 

“Headquarters armies of the united states.  “Washington, D. C., May 17, 1865.

“General:  Under the orders relieving you from the command of the Middle Military Division and assigning you to command west of the Mississippi, you will proceed without delay to the West to arrange all preliminaries for your new field of duties.

“Your duty is to restore Texas, and that part of Louisiana held by the enemy, to the Union in the shortest practicable time, in a way most effectual for securing permanent peace.

“To do this, you will be given all the troops that can be spared by Major-General Canby, probably twenty-five thousand men of all arms; the troops with Major-General J. J. Reynolds, in Arkansas, say twelve thousand, Reynolds to command; the Fourth Army Corps, now at Nashville, Tennessee, awaiting orders; and the Twenty-Fifth Army Corps, now at City Point, Virginia, ready to embark.

“I do not wish to trammel you with instructions; I will state, however, that if Smith holds out, without even an ostensible government to receive orders from or to report to, he and his men are not entitled to the considerations due to an acknowledged belligerent.  Theirs are the conditions of outlaws, making war against the only Government having an existence over the territory where war is now being waged.

“You may notify the rebel commander west of the Mississippi—­holding intercourse with him in person, or through such officers of the rank of major-general as you may select—­that he will be allowed to surrender all his forces on the same terms as were accorded to Lee and Johnston.  If he accedes, proceed to garrison the Red River as high up as Shreveport, the seaboard at Galveston, Malagorda Bay, Corpus Christi, and mouth of the Rio Grande.

“Place a strong force on the Rio Grande, holding it at least to a point opposite Camargo, and above that if supplies can be procured.

“In case of an active campaign (a hostile one) I think a heavy force should be put on the Rio Grande as a first preliminary.  Troops for this might be started at once.  The Twenty-Fifth Corps is now available, and to it should be added a force of white troops, say those now under Major-General Steele.

“To be clear on this last point, I think the Rio Grande should be strongly held, whether the forces in Texas surrender or not, and that no time should be lost in getting troops there.  If war is to be made, they will be in the right place; if Kirby Smith surrenders, they will be on the line which is to be strongly garrisoned.

“Should any force be necessary other than those designated, they can be had by calling for them on Army Headquarters.

“U.  S. Grant,
“Lieutenant-General.