General P. G. T. Beauregard, March 5th, assumed command of the Army of the Mississippi. On the 29th the Confederate armies of Kentucky and the Mississippi were consolidated at Corinth under the latter designation, Johnston in chief command, with Beauregard as second, and Generals Leonidas Polk, Braxton Bragg, Wm. J. Hardee, and Geo. B. Crittenden, respectively, commanding corps. Later, General John C. Breckinridge was assigned to the Reserve Corps, relieving Crittenden. The total strength of this army was 59,774, and present for duty (April 3d) 49,444.( 2) This was, then, the most formidable and best officered and organized army of the Confederacy for active field operations. To confront this large force there was the Army of the Tennessee, with an aggregate present for duty of 44,895, of all arms.( 3) Grant had sixty-two pieces of artillery, and his troops consisted of five divisions commanded, respectively, by Generals John A. McClernand, W. H. L. Wallace, Lew Wallace, Stephen A. Hurlburt, W. T. Sherman, and B. M. Prentiss. On April 3, 1862, the Army of the Mississippi was started for Shiloh, about twenty miles distant, under a carefully prepared field-order, assigning to each corps its line of march and place of assembling and giving general and detailed instructions for the expected battle, the purpose being to surprise the Union army at daylight on Saturday, the 5th. Hardee's corps constituted the left of the Confederate army, and on reaching the battle-ground his left was to rest on Owl Creek, a tributary of Snake Creek, his right extending toward Lick Creek. Bragg's corps constituted the Confederate right, its right to rest on Lick Creek. Both these corps were to be formed for the battle in two lines, 1000 yards apart, the right wing of each corps to form the front line. Polk's corps was to move behind the two corps mentioned, and mass in column and halt on the Back Road, as a reserve. The Reserve Corps under Breckinridge was ordered to concentrate at Monterey and there take position from whence to advance, as required, on either the direct road to Pittsburg Landing or to Hamburg. Other instructions were given for detachments of this army. The order was to make every effort in the approaching battle to turn the left of the Union Army, cut it off from the Tennessee, and throw it back on Owl Creek, and there secure its surrender.( 4) Johnston issued this address: "_Soldiers of the Army of the Mississippi:_