Major-General McClellan having personally taken the field at the head of the Army of the Potomac, until otherwise ordered he is relieved from the command of the other military departments, he retaining command of the Department of the Potomac.
Ordered further, That the departments now under the respective commands of Generals Halleck and Hunter, together with so much of that under General Buell as lies west of a north and south line indefinitely drawn through Knoxville, Tenn., be consolidated and designated the Department of the Mississippi, and that until otherwise ordered Major General Halleck have command of said department.
Ordered also, That the country west of the Department of the Potomac and east of the Department of the Mississippi be a military department, to be called the Mountain Department, and that the same be commanded by Major-General Fremont.
That all the commanders of departments, after the receipt of this order by them, respectively report severally and directly to the Secretary of War, and that prompt, full, and frequent reports will be expected of all and each of them.
A. LINCOLN. [ [!-- H2 anchor --] ]
FROM SECRETARY STANTON TO GENERAL MCCLELLAN.
WAR DEPARTMENT, March 13, 1862.
MAJOR-GENERAL GEORGE B. MCCLELLAN:
The President, having considered the plan of operations agreed upon by yourself and the commanders of army corps, makes no objection to the same but gives the following directions as to its execution:
1. Leave such force at Manassas Junction as shall make it entirely certain that the enemy shall no repossess himself of that position and line of communication.